Well, I'm not sure if this will answer your question. But, yes Nick Jonas is really Kevin and Joe's brother. If you do watch Disney Channel, then there is a show called Band in a bus. This has the Jonas Brothers, going places with their family including their little brother Frankie Jonas. I hope this helped!
Yes they are brothers.
(3) nick Jonas,Kevin Jonas, and Frankie
(3) nick Jonas,joe Jonas,and Frankie
This is Joe's : JOE JONAS This is Nick's: NICK JONAS This is Kevin's : KEVIN JONAS
Kevin Sr. Jonas is the Jonas Brothers (Kevin,Joe & Nick's)father.
Nick Jonas and Kevin Jonas. Joe is the dancer, singer. Nick and Kevin also sing
The Jonas Brothers names are : Paul Kevin Jonas II (he goes by Kevin) , Joseph Adam Jonas, and Nick Jerry Jonas .
Kevin Jonas joe Jonas Frankie Jonas
Kevin, Joe, and Nick Jonas.
Joe Jonas, Kevin Jonas, and Frankie Jonas.
Three. Joseph Adam Jonas, Paul Kevin Jonas II, and Franklyn Nathaniel Jonas.
Kevin is the lead guitarist of the Jonas Brothers.