Tegan and Sara - 'Closer'
As peformed on The Late Show with David Letterman // 11.20.2012




Andy Grammer - 'Miss Me'
As performed on The Tonight Show with Jay Leno // 11.19.2012




Phillip Phillips - 'Home'
As peformed on The Late Show with David Letterman // 11.19.2012



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Sources: YouTube.com (1)(2) + NBC.com