"Late Night" Preview: Jay Leno & Jimmy Fallon Address "Tonight Show" Rumors
3:20
Jay Leno spills the one guest he couldn't get
It was announced in July, 2008 that Leno would host his final episode of The Tonight Show in May, 2009 with O'Brien and James Taylor as his guests. O'Brien took over hosting duties commencing the following Monday, on June 1, 2009.