Saturday Night Live

The English-born late night host compared 'SNL' to a cult and mocked their sleepless writing sessions.

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.

The actor did double duty as both host and musical guest.

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.

"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.