1 VIDEO: IF/THEN's Idina Menzel Sings 'You Learn to Live Without' on 'Letterman' Video

VIDEO: IF/THEN's Idina Menzel Sings 'You Learn to Live Without' on 'Letterman'

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Tony Award winner Idina Menzel stopped by last night's LATE SHOW WITH DAVID LETTERMAN and performed 'You Learn To Live Without,' from the Broadway musical, 'If/Then.'