Growin' up Is hard to do. But it's kinda fun to watch and can make for some intriguingly awkward music. This summer, the Jonas Brothers continue their bid for power pop legitimacy with a world tour supporting the trio's fourth album, "Lines, Vines, and Trying Times" -- a set inspired by the sexy Kings of Leon and guru-level hitmaster Neil Diamond and due out June 16. They'll have a friend in the now-brunet and (so she says) "edgier" Ashley Tisdale, who leaves behind "High School Musical" for a more rock-oriented sound on her second album, "Guilty Pleasure," set for release July 28.
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