McDreamy to do some McDriving

Dr. McDreamy (a.k.a. actor Patrick Dempsey) will become Dr. McDriver come race day at the Indy 500 later this month.

Dempsey will drive the Chevrolet Corvette pace car for the Indianapolis 500 on May 27 and lead the field of 33 drivers to the green flag.

In addition to his acting gig on "Grey's Anatomy," Dempsey is co-owner of the Vision Racing team.

No word if Meredith will be on hand...