Everyone from David Hasselhoff to Jennifer Love Hewitt to William Shatner has tried to boldly go where hordes of celebrities have gone before: to the concert stage.

FORBES

Jennifer Love Hewitt ("Can't Hardly Wait"), Sarah Michelle Gellar of Fox's "Buffy the Vampire Slayer, " David Spade (NBC's "Just Shoot Me") and martial arts movie star Jackie Chan were on the list.

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Federer got off to an electric start with a game to love before breaking Hewitt's opening service game.

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