Luke Bryan was in Savannah, Ga., on Oct. 28 to preside over American Idol auditions with fellow judges Lionel Richie and Katy Perry.
When the auditions concluded, Luke took the Idol camera crew down the street and “crashed” the wedding reception of Austin and McKenna.
After making a short speech and popping some champagne, Luke led the party in a rendition of his 2011 No. 1 hit, “Country Girl (Shake It for Me).”
Watch the Facebook video below, which was posted by American Idol.