"Glee" star MATTHEW MORRISON has an ELTON JOHN duet on his debut solo album that comes out on May 10th. They do a mash-up of Elton's songs "Mona Lisas and Mad Hatters" and "Rocket Man". Check out a preview, courtesy of Ryan Seacrest's radio show, here. Note: This version contains audio tags. The song hit Amazon.com and iTunes TODAY. Here the track here.