Jimmy Fallon 's first night as host of ` ` Tonight '' was well - received . Yep , U2 was so awesome on Fallon 's `` Tonight '' that the band is taking up two moments on this list . Critics have called him ` ` easy to like '' and ` ` fresh '' Online , social media were filled with praise . Some of the night 's best moments included Will Smith and U2 .
Jimmy Fallon 's first night as host of ` ` Tonight '' was well - received . Critics have called him ` ` easy to like '' and ` ` fresh '' Online , social media were filled with praise . Some of the night 's best moments included Will Smith and U2 .