Watch Ellen Page's Moving Acoustic Cover of Britney Spears' 'Lucky'

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Ellen Page arrives at the Creative Arts Emmy Awards at Microsoft Theater on Sept. 10, 2016 in Los Angeles.

While Britney Spears fends off haters accusing her of lip-syncing during shows, Freeheld star Ellen Page leaves no question about whether she's singing live in a new video.

The actress posted a moving acoustic rendition of Spears' "Lucky" on Tuesday (June 27), in which she gently strums and sings the song from Brit's smash LP Oops!... I Did it Again in a dance studio while professional dancer Emma Portner does an interpretive, improvised routine to the tune.

Watch Page's Britney cover below.