Jimmy Fallon is off and running as host of The Tonight Show.
On his opening night, the comedian brought out such stars as Robert DeNiro, Mike Tyson and, well, Kim Kardashian.
Then, Kristen Wiig stopped by, doing her best to impersonate Harry Styles while sitting opposite the new host.
On Thursday, meanwhile, Fallon pulled out a First. A First Lady, that is, as Michelle Obama was a terrific sport in appearing with Fallon and Will Ferrell for a segment on Ew!, Fallon's SNL teen girl talk show.
Watch Obama mug for the camera, plug kale chips and then dance with her fellow stars now. Fun stuff: