Tomorrow is the first concert of The Grammy Celebration Concert tour presented by T-Mobile Sidekick. Leona Lewis and Gavin Rossdale will be performing at the Hollywood Palladium. Don’t forget to bring your Sidekick so you can flash it at the door and get VIP status for the night! Next stop is April 14th in San Francisco with Natasha Bedingfield and N.E.R.D. Check out the official site for more info on how you can get tickets for future shows in Boston, Miami, and New York.