A couple of big name MotoGP guys there with Doohan and Stoner. Stoner retired from MotoGP last year and just began his Holden car racing career.
They did something similar 20 years ago or so at Laguna Seca. I think it was with a Nissan Z, a street bike, and a MotoGP bike. They had some fun with Freddie Spencer standing next to his bike while the others were doing their lap. He put his helmet and gloves on and still passed them at the end.