Hayden and Laguna beau split

Hayden Panettiere is back on the market. The Heroes hottie and her boyfriend of one year, Laguna Beach alum Stephen Colletti have gone their separate ways. But the actress (who spent the end of August promoting Heroes in Europe) seems to have moved on. When asked, "Where's Stephen?" at the MTV VMAs on Sunday, she furrowed her brow and replied, "I don't know. In California?" A source says of the split, "Their breakup has been a long time coming." But that doesn't mean there's any bad blood between the former pair. "We are still very close friends and talk to each other frequently. We appreciate and support each other's careers," said Panettiere.