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.

And we're talking tiny! Wilmer Valderrama, who never misses a moment to speak out against the abuse of elephants in circuses, is producing a new series called Bugging Out that explores the rainforest and it's most fascinating inhabitants: insects. Wilmer champions these misunderstood animals and urges viewers to respect them for the unique and important beings they are. Says Wilmer, "Walking out and looking at the big tree and the tarantula on the wall. You learn to leave them alone, appreciate each other's common grounds."

Since "teaching a child not to step on a caterpillar is as valuable to the child as it is to the caterpillar," we hope that others will follow Wilmer's lead and learn how easy it is to live in harmony with insects.

Written by Jennifer O'Connor

OK, it's official—we're wild about Wilmer. Feztastic on That 70s Show, unforgettable in Fast Food Nation, and smooth as hell as the dude in charge of doling out disses on MTV's Yo Momma, Wilmer's latest television role is his most heartfelt yet. He recently took the time to crack the whip on the circus industry in a brand-spankin'-new PSA for PETA. But that's just the tip of the iceberg—Wilmer also granted us the following for-PETA-Files-eyes-only exclusive interview:

Written by Amy Elizabeth