The late-night comedy talk show, which debuted in 2007, ends its run with a live finale featuring over 30 stars, including 50 Cent, Jennifer Aniston & Sandra Bullock, Ellen Degeneres, Jennifer Aniston, Sandra Bullock, Justin Theroux, Ben Falcone, Mel... (more)issa McCarthy, Joe Manganiello, Leah Remini, Selena Gomez, Gerard Butler, Minnie Driver, Kristen Chenoweth, Trace Adkins, Avril Lavigne, James Van Der Beek, Rachel Bilson, Mary McCormack, Kelly Osbourne, Helen Hunt, Sheila E, Richard Marx, Kathryn Hahn, Johnny Knoxville, Tim Gunn, Anna Faris, Gabriel Iglesias, Chloe Grace Moretz, Buzz Aldrin, Sammy Hagar, Vanessa Hudgens, Sophia Bush, Jenny Biggs, Jason Biggs, Allison Janney, Alessandra Ambrosio, Kathy Griffin, Kevin Nealon, Marlee Matlin, David Hasselhoff