Jon Bon Jovi thrills fans with karaoke performance

Rocker Jon Bon Jovi stunned fans in a karaoke bar by showing up in disguise and belting out "Livin' On a Prayer."

The 54-year-old Bon Jovi frontman made the surprise appearance for a company that had partnered with his charity, The Soul Foundation, based in his native Philadelphia, Pennsylvania, reported Contactmusic.

"I went undercover, deep cover," he said, revealing he wore a dark wig, beard, mustache, hat, and glasses.

And when he pulled off his disguise, a female fan screamed.

"I think she was looking for security," he joked. "It was all in good fun.