Season 39 kicks off with host Tina Fey and music guest Arcade Fire.

Miley Cyrus hosts and performs.

Bruce Willis hosts. Music guest: Katy Perry.

Host Edward Norton; Janelle Monae performs.

Host Kerry Washington; Eminem performs.

Lady Gaga hosts and performs.

Host Josh Hutcherson; HAIM performs.

Host Paul Rudd; One Direction performs.

Host John Goodman; Kings of Leon performs.

Host Jimmy Fallon; Justin Timberlake performs.

Drake hosts and performs.

Host Jonah Hill; Bastille performs.

Host Melissa McCarthy; Imagine Dragons performs.

Host Jim Parsons; Beck performs.

Host Lena Dunham; The National performs.

Host Louis C.K.; Sam Smith performs.

Host Anna Kendrick; Pharell performs.

Host Seth Rogen; Ed Sheeran performs.

Host Andrew Garfield; Coldplay performs.

Host Charlize Theron; The Black Keys performs.

Host Andy Samberg; St. Vincent performs.