August 11, 2008
Fans of rocker John Mayer were buzzing during his Aug. 2 concert in Woodlands, Texas - but not because of his music! Late in the show, John, 30, played a duet with his opening act, sexy blonde folk/pop singer Colbie Caillat, 23, who bears a striking facial resemblance to his girlfriend, Jennifer Aniston.
While the crowd cheered as they finished their song, an eyewitness tells Star, "John seemed to pucker his lips as he leaned in to Colbie. She grabbed his arms and turned her head towards him, and for an instant, their lips locked. After John kissed her, she threw her head back with a big grin!"
Jen, 39, apparently wasn't at the concert. "If she was," says the eyewitness, "she might have thrown a tomato at the stage!