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Not sure if she's excited about summer, her hair or the fact that she's got a hunky older man to keep her happy, but Hayden Panettiere was on cloud nine when we snapped her leaving the hair salon in West Hollywood yesterday afternoon.

Looks like she's completely gotten over the fact that her NBC show Heroes got cancelled -- not only does she have a half dozen projects lined up, but she's also got a spot in Scream 4. Even though it's not an Oscar contender, it'll certainly put a nice chunk of change in her pocket...