Camp Rock‘s Demi Lovato announced she’ll be kicking off a 47-city tour, called Summer Tour 2009, on June 21 in Hartford, Conn. She’ll tour with American Idol runner-up David Archuleta — who will be opening for Lovato — and Jordin Pruitt and KSM, who will both appear on select dates. It’s a step up for the young starlet, who opened up for the Jonas Brothers during their tour last year. “I’m so excited about headlining my own tour. I love life on theroad. I’m in a different city every night and it never gets old,”Lovato told People. Tickets go on sale April 25.