Check this out!

Want to go to a Big Time Rush concert BEFORE their mall tour starts? Well you can!

Thanks to Walmart Soundcheck, the guys — Kendall, James, Carlos and Logan — are taking over the Brooklyn Bowl in NYC () for a private concert THIS Sunday, October 10th.

Video will be recorded, so you have to sign a release before you go in. Check out all the details at LBox.com, where you can RSVP.