From Lupita Nyong'o's first Oscar win to Kim Kardashian's marriage to Kanye West and Jessica Simpson's impressive weight loss, revisit the biggest and most memorable celebrity milestones
Goodbye Dave, Hello Stephen
In April 2014, David Letterman announced that 2015 will be his last year behind The Late Show desk, handing over the reigns to Stephen Colbert. "Simply being a guest on David Letterman's show has been a highlight of my career," Colbert said of his predecessor, who spent 11 years with NBC as host of Late Night and 22 with CBS on The Late Show. "I never dreamed that I would follow in his footsteps, though everyone in late night follows Dave's lead."