LOS ANGELES, March 31 -- Jack Black is set to host Saturday Night Live (SNL) on April 5, marking his first time back in nearly 20 years.

The actor and musician disclosed this to Variety after he attended the London premiere of A Minecraft Movie before heading to New York for the show's rehearsals.

"It feels cray cray," Black said, admitting that returning to Studio 8H after two decades is both exciting and nerve-wracking.

He joked that he has been preparing by experiencing "lots of nightmares and night terrors," along with fond memories of his past appearances.

Black last hosted SNL on December 17, 2005, while promoting Peter Jackson's King Kong, and previously led the show in 2002 and 2003.

He has no idea what direction the sketches...