JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
During a recent concert in Philadelphia, Justin Timberlake was given "the finger" by a fan who claimed she was trying to get the singer's attention. Handling the situation like a pro, he got the entire audience to make the same gesture together.
New York's Z100 actually tracked down the fan, Katelyn, and asked her about the incident. Find out what her real motive was and how everyone is reacting to her!
Check it out below!