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.

Is there a week that goes by when Russell Simmons doesn't do something awesome for animals? (Answer: no.) This week, the hip-hop mogul and PETA's person of the year asked New York Gov. Andrew W. Cuomo to drop unhealthy milk as New York's state beverage.

Major League Soccer MVP Dwayne De Rosario, who has been vegan since he was 14, should be on board—he shook up Millions of Milkshakes with his own vegan creation.

Best wishes to another MVP, Baltimore Ravens running back Ricky Williams, who is retiring from the sport. We're sure that our MVP of animal rights isn't retiring from helping animals.

We hear that guests at vegetarian beauty Anne Hathaway's engagement party enjoyed delicious, cruelty-free fare, including vegan burgers and cupcakes.

Planning your own vegan wedding? Check out our animal-friendly tips for the big day.

In the latest issue of Marie Claire, PETA anti-fur star Eva Mendes does more than just grace the cover with her beauty. In the spread, Eva talks about ditching meat and the benefits it's brought to her life. Check out our free vegetarian/vegan starter kit to find out how vegetarian meals can be great for you and animals!

PETA's favorite vampire, Kellan Lutz, is helping PETA purchase a new rescue van for our Community Animal Project. The star has also asked all his Twitter followers to help too.

Photo: Collin Stark www.collinstark.com

Rock 'n' roll legend and legendary champion for animals Chrissie Hynde is urging Ohio to enforce its ban on the use of electric prods and similar devices on animals when Ringling and its bullhook-wielding "trainers" come to the state.

And Daniel Tosh was Tosh.Oh-so-sweet this week when he blasted cruel bull runs on his show.

While out for a run, teen bride Courtney Stodden proves there's no wrong way to show off your vegetarian pride.

NASCAR driver Andy Lally keeps his motor running with healthy vegan foods.

When Denise Richards tweeted to PETA asking for vegan cookbook recommendations, we not only told her about some but also sent 'em to her, and she tweeted her thanks.

Liam Hemsworth might be in puppy love—he got a rescued dog from girlfriend Miley Cyrus for his birthday. She asked her Twitter followers always to adopt, never buy, joining the roster of celebrity sweet tweeters:

Maybe James Franco was inspired by Rise of the Planet of the Apes to join Kevin Nealon and a host of other celebrities in support of the Great Ape Protection and Cost Savings Act, which aims to get great apes out of laboratories.

One of the great apes' staunchest supporters, Dr. Jane Goodall, is featured on Beliefnet.com's picks for the Top 10 Animal Rights Activists. Click here to see the full list, which includes heavy hitters such as Bob Barker, Ric O'Barry, and Russell Simmons.

Another heavy hitter, PETA President Ingrid E. Newkirk is making headlines for not mincing words. Asked what she thought about Real Housewives of New York star Cindy Barshop's real-fur merkins, she responded, "It's outright sleazy, and it's downright cruel to kill an animal to decorate your privates." We'll leave you with that.