Train performed at The Andre Agassi Foundation for Education, 16th Grand Slam for Children benefit concert<br /><br />Held Saturday, October 29 at Wynn Las Vegas, the Grand Slam featured a star-studded lineup of performers including Michael Buble, Jimmy Kimmel, Martina McBride, Smokey Robinson and Train, with surprise appearances by Gladys Knight, Signature Group and comedian Jeff Ross.<br /><br />Follow Hollywood.TV on Facebook @<br />facebook.com/hollywoodasithappens
