Costa Mesa, Calif. - Tickets.com, a unit of Major League Baseball Advanced Media, announced this week that it has partnered with the Royal Oak Music Theatre in Michigan, to offer concertgoers the ability to purchase tickets that will be delivered in the form of a bar code to their mobile phones that can be presented for entry at the venue. Costa Mesa, Calif.-based Tickets.com said the theater is its first partner outside the sports world to use its Tickets@Phone service; six MLB teams currently offer the service.