Adorable Aussie Cody Simpson has girls around the globe in full-on swoon as they scramble to grab his new EP, Preview to Paradise, today and catch him on tour with Big Time Rush this summer. But who's really got him good? His dog, Buddy.

Zachcordner.com

In his new campaign for PETA, Cody asks all his fans to take excellent care of their own animals and always speak up anytime they see or suspect animal abuse:

Cody joins a growing list of compassionate stars, including Justin Bieber, Sean Kingston, Jay Sean, Travie McCoy, Lea Michele, Megan Park, and Daniella Monet, who have taken time out of their intensely busy schedules to ask that people never be silent when animals are not being treated with the kindness and respect that they deserve. 

The world has fallen for Lea Michele, but the lovely songbird uses her popularity to help stop cruelty to animals. Lea and PETA scored a spot on Teen.com's list of the "Top 5 Celebrity Charities You Should Support." (We also noticed our buddy Justin Bieber on the list.)

Joining Lea in the crusade to get horses off New York City's congested streets is Smash star Anjelica Huston, who asked the City Council to replace horse-drawn carriages with eco-friendly classic cars. Anjelica's Smash co-star Debra Messing also tweeted her support.

Rescued-dog fan Miley Cyrus is using Twitter to urge Khloe Kardashian to adopt, not buy. After Khloe tweeted that she was ready to share her life with a dog, Miley responded that she would love to help Khloe find a rescue, and Khloe kindly accepted! PETA jumped in to help, too, tweeting Khloe a link to a wonderful open-admission shelter in Dallas. Perhaps we'll be seeing the new addition to Khloe's family on an upcoming episode of Khloe & Lamar? 

Flip the dial to NBC to catch Wilmer Valderrama's new show, Awake. Before Wilmer was exposing secrets as a detective, he was exposing circuses' cruelty to animals. We know Ringling won't be popping up in any Awake episodes.

To keep up with what your favorite stars are doing for animals, follow @PETA on Twitter.

Justin Bieber

Word on the street is that PETA pals Justin Bieber and Kellan Lutz will be appearing outside the Kodak Theatre on Hollywood Boulevard to promote animal adoption. 

Bob Barker

It's been a while since Bob Barker appeared on The Price Is Right, but he still wants the show he made famous to maintain his animal-friendly ideals. When the show gave away a prize of cowhide boots and a trip to the infamous Calgary Stampede, Bob wrote and told The Price Is Right it was dead wrong to promote cruelty.

Angela Simmons

Over on the opposite coast, Angela Simmons wrote to her NYC councilmember and asked him to support a ban on horse-drawn carriages that Olivia Munn, Lea Michele, Pamela Anderson, and many others have asked the city to pass.

Georges Laraque

And Georges Laraque is asking the Toronto Maple Leafs to take a pass on fur after the team promoted a jacket trimmed with coyote fur. He may have played for the opposing Canadiens, but Georges thinks both sides can agree that wearing fur is ice cold.

Ted Danson & Emily Osment

Ted Danson and Emily Osment are both showing that they are warm to animals. The distinguished actor and the burgeoning star both rave about their cruelty-free vegan eating.

Justin Bieber and Selena Gomez may have made beliebers out of nearly 200 homeless dogs and cats. When the stars visited the animals at a Winnipeg animal shelter, Gomez found somebody to love (besides the Biebs), a husky mix she named Baylor. Of course, since Justin advocates for adoption and Selena has five other rescued dogs, the couple chose a baby, baby, baby from a shelter instead of a pet store.

Will Justin be adopting a new friend for himself and his dog, Sam? Never say never (except to buying from a breeder).

Written by Michelle Sherrow

This coming Sunday, July 31, has been dubbed "Mutts Day," and I can say from personal experience that nothing beats an adorable one-of-a-kind mutt. When you adopt a homeless mutt from a shelter, you not only gain a best buddy, you also save a life. But don't just take it from me—take it from these famous shelter-dog fans:

Of course, mutts aren't the only ones who are abandoned at shelters—it's estimated that a quarter of shelter dogs are purebreds who were dropped off after being purchased from a pet shop, puppy mill, or breeder. No matter what kind of dog you're looking for, you can find one at a shelter.

Maybe you can't buy love, but you can certainly adopt it.  

Written by Michelle Sherrow

If you start to hear reports about increasing numbers of fender-benders on Sunset Boulevard in Hollywood, it's probably because so many teen girls will be slamming on their brakes to check out Justin Bieber's new billboard for PETA.

The cutie-patootie singer added to fans' Bieber fever with his new ad campaign encouraging people to help end animal homelessness by always adopting animals from shelters instead of supporting breeders.

The Biebs has a heart as big as the stadiums that he sells out. His documentary, Never Say Never, hits theaters this Friday.

Written by Michelle Sherrow

After reading the last few posts about animal homelessness, euthanasia, and hoarding, some people might be wondering what they can do to help. Perhaps a few of you have even considered starting your own animal rescue group. If so, thank you for caring so deeply, but please—help us focus attention on stemming the flow.

Think of it this way: The animal overpopulation crisis is like water flooding into a sinking ship. We don't need more people bailing; we need to fix the gaping hole in the bottom of the boat! When it comes to ending animal homelessness, the most humane and sustainable solution is to pour our time, money, and effort into having animals spayed and neutered. Preventing more animals from being born stops the problem at its source. Here are some creative ways that we can work toward a no-birth nation: 

• Consider starting a program like the one run by Michigan's Heaven Can Wait Animal Haven, which transports animals to and from local low-cost spay-and-neuter clinics.
• Start a group to raise money for free spay-and-neuter surgeries for animals in your community.
• Hold fundraisers for local spay-and-neuter clinics so that they can waive the costs for low-income individuals and at-risk animals.
• Raise funds for PETA's "Spay and Neuter Immediately, Please" (SNIP) mobile clinic. 
• Take a hands-on approach in your community by volunteering for PETA's Animal Birth Control (ABC) program.   

Another crucial component of ending animal homelessness is educating the public about why it's so important to adopt animals instead of buying them from pet shops or breeders. If you are considering adding a cat or dog to your family, your decision will literally mean life or death for an animal waiting in an animal shelter. If you choose to buy from a breeder or a pet store, an animal at the local shelter must be euthanized. Please, always choose to save a life by adopting your animal companions from animal shelters or reputable adoption groups.

PETA has teamed up with dozens of celebrities—including Justin Bieber, Yvonne Strahovski, Lance Bass, Kellan Lutz, Joanna Krupa, Audrina Patridge, Patricia Arquette, and others—for pro-adoption public service announcements (PSAs). You can help encourage people to adopt animals, never buy, by sponsoring or obtaining free placement for one of these PSAs in a newspaper or magazine.

Thank you for caring. Animals like these are counting on compassionate people like you:

Like so many other rabbits, Bobbi was acquired on a whim and surrendered after her owners discovered how much time and effort are required to care for a rabbit. PETA found Bobbi a loving home, and she now enjoys playing with three other rabbits and sleeping in a bed with her new family.

One freezing day, PETA's straw-delivery volunteers found Sunday living in filth and mud, tethered by a chain that was only a few feet long. Sunday perked up immediately after PETA's volunteers gave him a doghouse and replaced the short chain with a new, lightweight tie-out.

Julie was once trapped at the end of a chain—one of the worst punishments possible for a dog, especially a collie—but PETA's fieldworkers convinced her owners to surrender her and helped place her in a wonderful home with a family who adores her.

Written by Lindsay Pollard-Post

Dear 2010,

It's over. We'll always treasure the victories that we achieved for animals in our year together, but it's time for us to move on and take a look at the trends that we can expect in 2011:

We hope that we can still be friends, 2010. And we'll always have the Snuggie Macarena dance …

Written by Amy Skylark Elizabeth                                                                                                                             

When it comes to animals, Jada Pinkett Smith has a heart as big as her incandescent smile. We recently learned that the HawthoRNe star came to the rescue of a hungry puppy who was fending for himself on the streets of Beijing during the shooting of the hit film The Karate Kid—produced by Jada and her husband, Will Smith, and starring their son, Jaden (who also recorded a song for the soundtrack with Justin Bieber and Jackie Chan.

The lucky dog, nicknamed "Beijing Black," has now made himself at home with the Smith brood, along with a number of other animals. After recognizing how unhappy snakes are in captivity, Jada vowed not to take home any more caged animals. Now, she says, "I like to rescue dogs."

Written by Jeff Mackey

ttarasiuk / CC by 2.0

For many Americans, Fourth of July celebrations represent copious amounts of barbecue, beer, and fireworks. But for animals, the holiday means terror, thanks to the thunderous explosions that typically start days before the official holiday and never seem to end. Desperate to escape the ear-shattering booms of fireworks displays, even the coolest cats will scatter and the most docile dogs will chew, dig, claw, and otherwise try to break free from their confines and run for the hills. After all, their hearing is much more sensitive than ours.

Such escapes take place all over the country, and one story made national headlines last year: Knowing that their dog, J.J., feared fireworks, Spokane police thought it would be a good idea to lock him in a kennel. Wrong answer.

J.J. was so terrified by the fireworks that he used his teeth to bend open the steel latch to his kennel in order to escape. J.J. was found the next day—but countless dogs who flee are lost for days—or forever. Any animal shelter employee will tell you that the number of lost dogs and cats skyrockets every year after Fourth of July fireworks celebrations.

PETA needs your help as we collect data to strengthen efforts to convince communities across the country to celebrate with spectacular laser light shows instead of noisy fireworks displays. Until my city cans the explosions, I'll celebrate Independence Day inside, practicing these helpful tips for calming my dogs and cats. My curtains will be drawn, and I'll be playing Beethoven to drown out the neighborhood noise. After all, it's no holiday for me if it's a helliday for my animal companions. Don't you agree?

Written by Karin Bennett