Rufus Wainwright Hilariously Duets with Barbra Streisand... Sort Of

Dreams came true for singer Rufus Wainwright earlier this week, when he got to duet with Barbra Streisand...well, sort of. Both performers took part in an NYC fundraiser for Presidential candidate Hillary Clinton, and when Streisand crooned "Happy Days Are Here Again," he just couldn't resist.

Check out the hilarious video!