VIDEO: Miley Cyrus Performs '(Happy Xmas) War Is Over' With Sean Ono Lennon and Mark Ronson

On last night's Saturday Night Live, musical guests Mark Ronson and Miley Cyrus perform "(Happy Xmas) War Is Over" with Sean Ono Lennon.

Lennon is THE SON of John Lennon and Yoko Ono.

The song was introduced by Pete Davidson, who did not appear in any of the sketches this week.

Watch the performance below!

Saturday Night Live (SNL) is an late-night live television variety show created by Lorne Michaels and developed by Dick Ebersol. The show premiered on NBC on October 11, 1975, under the original title NBC's Saturday Night. The show's comedy sketches, which parody contemporary culture and politics, are performed by a large and varying cast of repertory and newer cast members.