They don't have one. They have one real brother, though:Frankie Jonas.
he has two step brothers
the jonas brothers are real brothers
"Sons of Jonas", but Kevin came up with "Jonas Brothers".
Yes, he had a stepbrother and a stepsister.
well there last name is Jonas and they are brothers
"Who Inspiers The Jonas Brothers?"I believe The Bettles Inspier The Jonas Brothers That Is Who Inspiers The Jonas Brothers!I Hope I Helped!Thanks!
Jonas brothers twitter address is www.twitter.com/Jonas Brothers
Because their last name is Jonas and they are Brothers. That makes the Jonas Brothers.
Because the musical group consists of Kevin, Joe, and Nick Jonas, and they are brothers. It was a convinient name to use; they thought of The Jonas Trio; Jonas 3; and Sons Of Jonas; but the Jonas Brothers was the most reasonable.
the Jonas brothers are AMAZING!!!!!!!!!!!!!! hehe :)
the Jonas brothers were grounded?!?!?!?!?!
Because they are all Jonas and they are brothers.