Pop superstar Lady Gaga was named the most charitable celebrity on Tuesday by the folks at DoSomething.org.  Gaga landed the No. 1 spot on the website's Top 20 Celebs Gone Good list, a ranking of philanthropic generosity of musicians, actors and other celebs.  Coming in at No. 2 on this year's list was Justin Bieber, followed by George Clooney, Will & Jada Smith, and Leonardo DiCaprio.  Check out the full Top 20 list below.

Known for her work fighting for gay rights, AIDS and poverty, Gaga focused considerable effort in 2011 on a campaign against bullying.  She also joined forces with her mother to set up the Born This Way Foundation, an organization geared towards empowering young people.

2011 Celebs Gone Good

1. Lady Gaga
2. Justin Bieber
3. George Clooney
4. Will & Jada Pinkett Smith
5. Leonardo DiCaprio
6. Matt Damon
7. Ellen Degeneres
8. Brad Pitt & Angelina Jolie
9. Dwight Howard
10. Demi Lovato
11. Shakira
12. Ashton Kutcher & Demi Moore
13. will.i.am
14. Blake Shelton & Miranda Lambert
15. Nick Cannon
16. Lea Michele
17. Daniel Radcliffe
18. Miley Cyrus
19. Coldplay
20. Taylor Swift