John Mayer opened his new Born & Raised Tour Saturday night in Milwaukee with a tribute to girlfriend Katy Perry.

Mayer called Perry "more incredible than I ever thought" as he described how Katy would talk for him early in their dating, when he was recovering from throat surgery and wasn't allowed to speak.

Mayer didn't mention the pair's brief break-up in March.  They've been back on, stronger than ever it seems, for over a month.