Jack Black is hosting "Saturday Night Live" for the first time in nearly 20 years - and he kicked off tonight's episode with a song about his return as host. Black began his opening monologue by jokingly announcing that he was quitting the hosting gig.

Jack Black is returning to host “Saturday Night Live” for the fourth time, with musical guests Elton John and Brandi Carlile.

"It's been 20 years since I've been on this stage," A Minecraft Movie star said before rocking Studio 8H with Aerosmith's "Back in the Saddle."

In a major throwback to 2006, Jack Black returned to host 'Saturday Night Live' this weekend, and he brought a My Chemical Romance tribute with him.

Host Jack Black joined the “SNL” cast to answer that question in the very musical April 5 episode of the show. Michael Longfellow stars in the pre-recorded sketch/music video as a goth teen who joins his family for vacation fun in Jamaica.

Jack Black rejoiced in his return to Saturday Night Live after nearly twenty years away, singing about the occasion to the tune of Aerosmith’s “Back in the Saddle.” Black, who most recently hosted SNL in 2005 and was the show’s musical guest with Tenacious D the following year,