So we know for a FACT that the Jonas Brothers attended the Kings of Leon concert in Hamilton, ON, Canada on September 19th, but who's the girl with Joe?
Many people believe the girl is Brenda Song, who Joe has been rumored to be dating. A while back, Joe and Brenda went out to dinner together in LA, and "tried" to avoid the paparazzi.
A fan took this photo at the concert, but they are not sure who the girl is. From the back, she definitely looks like Brenda.