Steven Tyler Brings Some Rock To The Academy of Country Music Awards
Tyler was a surprise and unannounced guest, joining Carrie Underwood for her song "Undo It" before the two segued into Aerosmith's "Walk This Way."
Tyler – all in white – complimented Underwood's black outfit, as the two commanded center stage with some serious swagger; Carrie even added some scarves to her microphone in a salute to the Aerosmith legend. Watch it here
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