Brothers will be brothers, even when they're mega-popular GRAMMY-nominated recording artists.Joe and Kevin Jonas joined brother Nick as the Battle Rounds began on Monday's all-new episode of and the trio could barely stop teasing each other long enough to mentor the artists.«It's so good to finally meet you guys,» Nick said with a laugh, «introducing» himself to his older bros. «I've been a fan for a long time.»«The honor is yours,» Joe fired back, before making his younger brother open the door for him.«I brought two of the most unintelligent people I could find, just so I could look better,» Nick teased, when the JoBros sat down for the cameras.«We are here to save the day!» Joe added, lamenting the fact that his chair didn't spin.<p
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