Palin, the darling of the conservative movement who continues to be a political presence after her and John McCain's failed bid at the White House in 2008, was lauded by musician Ted Nugent for keeping the "independent patriotic spirit, attitude and soul of our forefathers" alive and well as she battles "Fedzilla."
Clinton, who is coordinating U.S. relief efforts in Haiti and serves as the United Nations envoy to the quake-stricken country, is hailed by U2's Bono as a "mythic figure."
"Rock stars can't be President (lucky for you)," the singer writes, "but we've all got reason to be thankful that Presidents can be rock stars."
Called the "Beatles of computing" by artist Jeff Koons, Jobs has kept Apple Inc. dominating the technology landscape, with the company rolling out its latest hit, the iPad, in April.
Gaga, a pop music sensation whose fame has skyrocketed in the last year, is hailed for her "incredible pop sensibility" by Grammy award-winning singer Cyndi Lauper, who writes that "Gaga presents her ideas in a sophisticated manner" while "most of the stuff on the radio is not very clever."
Other notables making the list: President Barack Obama, Speaker of the House Nancy Pelosi and late-night comic Conan O'Brien.