Joe Jonas

Elder Ordonez/

If you're a diehard Jonas Brothers fan, then you've got October 11 circled, starred and blinking neon—because that's the date when the band will reunite onstage in New York City to debut new music to fans.

Leading up to the Radio City Music Hall performance, Kevin, Joe and Nick Jonas have been busy rehearsing—traveling between New York and Los Angeles—to get everything perfect for opening night.

In fact, the paparazzi snapped this photo of Joe heading off to rehearsal just yesterday. "Back at it again today," Joe tweeted. "Only a few days left until Radio City!!!!"

While younger brother Nick posted, "Been in Rehearsals for the big show the last week headed to NY now to continue working there. We want to make it a night to remember."

Practice makes perfect, and we just know that it truly will be unforgettable!

To see how the brothers have been prepping for their big night, check out our gallery below and make sure to tune in to an all new episode of Married to Jonas this Sunday at 10/9C only on E!

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