Saturday Night Live

He also wore a 'Canada Is Not for Sale' shirt during the show's farewells.

They did a track he last sang with George Harrison on 'Saturday Night Live' in 1976.

Rockers tore through fiery rendition of landmark single "Smells Like Teen Spirit."

Jack White, Devo and the B-52's are also on the lineup.

He played and sang all the Bob Dylan songs in director James Mangold's 'A Complete Unknown.'

"We're all at the mercy of the cowbell sketch in different ways," Buck Dharma says.

It features over 1,000 crystals.

"I should've said, 'No, I will not go on. I will not do this,'" the singer involved later admitted.

It was the singer's first time back on the show in over 40 years.

The film offers a condensed and dramatized account of the 90 minutes before the first 'SNL' hit the air.

'SNL' called Spirit Halloween employees "some of America’s hardest hit perverts."

For 50 years, the late-night sketch show has been a launching pad for some of entertainment's most famous stars.