Lady Gaga, Will Smith, And Kim Kardashian: The Best Moments From Jimmy Fallon’s First Week

After hosting (fake) Harry Styles and Will Ferrell, Justin Timberlake will round out week 1.

When you kick off your first week with U2 
 and end it with Justin Timberlake, cramming in Will Smith, Lady Gaga, Kim Kardashian, fake Harry Styles 
, the First Lady, a rapping Brian Williams and an ice skating Will Ferrell in between, you can take a day off and chill.

But knowing Jimmy Fallon, he won’t. It’s safe to say that Fallon killed the game (and posted impressive ratings) during his first week as host of “The Tonight Show.” With a star-packed roster of guests and surprise drop-ins 
 (hello Martin Scorsese and Seth Rogen), not to mention a Friday night show that will re-unite him with his partner in comedic crime JT, the former “Late Night” host proved more than up to the job.

There were so many highlights, in fact, that instead of just naming them all, we decided to just show you what you might have missed:

Musical Majesty
U2’s rooftop gig was amazing, but this week also brought us Lady Gaga, Arcade Fire, Jimmy and Will doing the “Evolution of Hip-Hop Dancing,” the Ragtime Gals taking R. Kelly’s “Ignition” to the barbershop and the unforgettable Brian Williams “Rapper’s Delight” bit.

Lady Gaga’s ARTPOP jam session.

U2 getting high on the roof of 30 Rock.

Brian Williams rapping the news.

Embedded from www.youtube.com.