John Mayer recently dedicated a love song to his on-again girlfriend Katy Perry during the opening night of his Born and Raised World Tour.
He thanked her for staying with him while he had vocal chord problems.
"She was so patient," he said to the audience. "To continue to get to know me and love me."
He then sang "A Face to Call Home," a song off his 2012 album.
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He closed the song and said it was for "Katy, who is my face to call home."