Elton John and 'Glee's' Matthew Morrison Collaborate on Mash-up

Elton John took a break from diaper duty -- he and partner David Furnish welcomed son Zachary last month via surrogate -- to record a song with Matthew Morrison on Monday.

John told Parade, "It's a duet. It's great, really fantastic. He sings great on it."
Morrison often challenges his Glee club members to blend two unrelated songs together in a mash-up on the hit Fox show. He's bringing the same trend to his upcoming album. "It's a medley of 'Mona Lisas and Madhatters' going into 'Rocket Man,' " John revealed.