In honor of what would have been John Lennon’s 75th birthday, Blackbird Presents, in partnership with AMC, brings you Imagine: John Lennon 75th Birthday Concert, an all-star concert event celebrating the music and message of the legendary music icon. The one-night-only concert event hosted by Kevin Bacon was held at the Theater at Madison Square Garden on Saturday, December 5th, and will air exclusively on AMC on Saturday, December 19th at 9:00pm ET/PT.