Has Katy Perry tamed infamous ladies’ man John Mayer? After the guitar hero performed at the Bob Woodruff Foundation “Stand Up for Heroes” show Thursday, even a line of women couldn’t turn his head. “John was at a table with friends at Cafe Luxembourg after the show,” said a spy, “and a line of girls kept coming up to him.” But, the witness said, “He was clearly not available. It seemed like the opposite of the way he’s been in the past, like he’s really settled down.” One particularly stunning fan couldn’t even get Mayer to look up from his phone, and finally asked him, “Are you talking to Katy?” and walked away. Mayer and Perry were then seen together Sunday in Malibu.