Jay Leno's last night hosting his Tonight Show will be February 6, reports Deadline.com. And this time, it's expected to stick. The decision means that Leno will host right up until the Winter Olympics begin on NBC, and Jimmy Fallon will take over after they end on February 24. Variety confirms the scoop and notes that Leno is going out on a ratings roll: He's trouncing the competition regularly, maybe thanks to high-profile guests such as President Obama. NBC is in talks with Leno to continue some kind of presence with the network once he's done hosting.