The Jonas Brothers were so massively popular around 2008 that even non-Millennials knew about Joe, Nick and Kevin. But only true die-hard Jonas Brothers fans knew about Frankie "Bonus" Jonas, their adorable little brother. (He's still only thirteen-years-old!) A certain segment of the Jonas Brothers army flooded nascent social media sites with information about the kid. The shockingly swift collapse of the Jonas Brothers career (damn you, Justin Bieber!) took Frankie down with it, but he has plenty of time to start anew. He doesn't even turn 30 till 2030.