He might quit music altogether if they ever let him behind the wheel.
In one of the odder, but still highly entertaining, cross promotions you'll ever see, Nissan put Adam Levine (we gather he's in some kind of band, and possibly a TV show, we don't know, girls seem to like him) in the passenger seat of a GT-R while a test driver took him on a high-speed lap of some city streets. They say that the purpose was to see if he could keep his concentration and sing while the driver thrashed around the corners.
He sort of did, although we're not really sure what this proves. That's fine though, it was funny to watch and will go down in history as one of the great WTF promotional stunts of our time.