Lady Gaga has topped the list of most charitable celebrities of this year and she has won this acclaim for the second consecutive year.
Justin Bieber took the No. 2 spot and George Clooney rounded out the top three of the annual Celebs Done Good list compiled by the teen-focused volunteer organization DoSomething.org, Radar online reported.
In 2011, Gaga, who is already well-known for her work against AIDS and for gay rights, turned her attention to putting an end to bullying, even bringing her fight to the White House.
She also set up the Born This Way Foundation, to help empower youth.
Bieber, the youngest person on the list, works with Pencils of Promise, an organization that has built 41 schools in Laos, Nicaragua and Guatemala.
Adam Braun, the brother of the singer's manager, Scott "Scooter" Braun, founded it.
Biebs has also donated hundreds of thousands of dollars to the Make-A-Wish Foundation, Toronto's Daily Bread Food Bank and Children's Wish Foundation, and Whitney Elementary School in Las Vegas, where more than half the students are homeless.
Meanwhile Clooney continued his advocacy for the victims of the political turmoil in the Sudan, something he has spearheaded for the last six years.
Other celebs making to the top 10 list are Will and Jada Smith, Leonardo DiCaprio, Matt Damon, Ellen DeGeneres, Brad Pitt and Angelina Jolie, Dwight Howard, and Demi Lovato.