It is 'Lucas'. Joe Lucas, Nick Lucas, Kevin Lucas and Frankie Lucas.
lucas
Their last names are Lucas. Nick Lucas is played by Nick Jonas, Joe Lucas is played by Joe Jonas, and Kevin Lucas is played by Kevin Jonas.
I like Fred and I HATE JONAS BROTHERS AND TWILIGHT'S EDWARD
yes..well Joe Jonas plays Joe Lucas in the Jonas Brothers' new show on Disney Channel, JONAS.
Kinda
In their Disney Channel Show "JONAS", the Jonas Brothers: Joe, Nick and Kevin Jonas play Joe, Nick and Kevin Lucas. The boys are a part of a band called JONAS, named after the street they live on.
Well, honey, the Jonas Brothers' real last name is Jonas. I mean, it's right there in their stage name, isn't it? They didn't exactly reinvent the wheel with that one. So, yeah, it's Jonas. Next question!
Okay, the most popular people are the Jonas Brothers. This band consists of three real brothers who are pretty much Disney Stars. Their names are: Nick Jonas, Joe Jonas, and Kevin Jonas.
No, their sticking with pop, and rock.
They have a tutor that goes with them on the road. I am not sure what her name is though.
They were originally going to name themselves Sons of Jonas, but when they moved to Hollywood Records, their manager thought they needed a different name and called them by 'the Jonas Brothers', so they quickly changed their name.