What if Sting showed up for your class one day?

The one-time school teacher surprised students in a music composition class at the University of Illinois at Chicago, barging in with MTV cameras in tow to speak and jam with them Monday.

The students, who had been told that their regular class was going to be filmed for a promotional video for the university, erupted in cheers as Sting and his band entered through a side door.

Sting teaches star-struck music students - MUSIC - MSNBC.com