The New Jersey-based band performed its original song "Fighter," announcing all proceeds would be donated to childhood cancer research.
Local cover band Double Oh7 brought some of the most memorable party tunes to the BJC as crowds began to lighten up.
"Honestly, I don't even like the Jonas brothers. I'm just here to snapchat this so that all my girl friends can be jealous."
3 AM Tokyo showed an impressive range of songs, impressing and energizing THON.
The band will play it's second show of the night, this time downtown at Champs. Sorry underagers.
Joe Jonas and DNCE shook the BJC just two hours into THON with a surprise performance.