If you are going to end your Tonight Show lip-sync battle with a duet then you’d better hope your partner brings your performance to a new high — like seven-feet-off-the-ground high. This scenario is exactly what happened to Jimmy Fallon when Shaquille O’Neal decided to play the rather tall, burly, and physically affectionate Kiki Dee to Fallon’s Elton John in a lip sync to “Don’t Go Breaking My Heart.†And really, what better way to celebrate the end of March Madness than with this early April madness?