Underwood hits the high notes at a country music festival in London. Plus: Zac Efron, the Garner-Afflecks, Fergie & Josh Duhamel and more


Not even a pair of sunglasses can keep Zac Efron – and all that sexiness – undercover in Austin, Texas, where he makes his way to Saturday's South by Southwest festival screening of his film, At Any Price.

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