Who Knew Cyclops Could Sing?

3/18/2007 4:02 AM PDT
Hottie James Marsden has ditched his "X-Men" brethren (and sexpots like Halle Berry and Famke Janssen) for a dress-wearing John Travolta -- talk about a downgrade!

Making a split from comic book movies ("X-Men" and "Superman Returns"), Marsden showed off his vocal prowess at ShoWest this week, at an event for his next flick, the film version of the musical "Hairspray" ... and damn, boy can sing!

The movie also stars Queen Latifah, who snatched an Oscar nom for "Chicago," and Michelle Pfeiffer, who proved her singing voice 25 years ago in the craptacular "Grease 2."