Twitter Reacts To Will Smith's Dance Moves On Tonight Show (@FallonTonight)

Jimmy Fallon's tonight show debuted with huge guests and big performances.

Fallon began his show with his first guest, Will Smith. The two came together for the skit "Evolution Of Hip-Hop Dance" where they cover everything from 'The Carlton' to 'The Stanky Legg.' Other special cameos included Kim Kardashian, Tracy Morgan, Lady Gaga and more.

Check out what Twitter had to say for Will's questionable moves.