LONDON, ENGLAND - APRIL 29: Martha Wainwright (L) and Rufus Wainwright attend "Sing Me The Songs That Say I Love You - A Concert For Kate McGarrigle" screnning and Q&A during Sundance London at ... more 
LONDON, ENGLAND - APRIL 29: Martha Wainwright (L) and Rufus Wainwright attend "Sing Me The Songs That Say I Love You - A Concert For Kate McGarrigle" screnning and Q&A during Sundance London at Cineworld 02 Arena on April 29, 2012 in London, England. (Photo by Gareth Cattermole/Getty Images for Sundance/AEG Europe) less 
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Getty Images | Photo By Gareth Cattermole / Getty Images for Sundance/AEG Eu
Sun, Apr 29, 2012 9:56 AM EDT