Justin Timberlake hosts the season finale with music guest: Lady Gaga
Tina Fey hosts with Musical Guest Ellie Goulding
Helen Mirren is the host. Music guest: Foo Fighters
Elton John is the host. John also performs with music guest Leon Russell
Zach Galifianakis returns as host with musical guest: Jessie J.
Miley Cyrus hosts. Music guest: the Strokes