Koreatown Karaoke for Under 21?

To all my New Yorkers: So my friends and I wanted to go do karaoke this weekend, and all the places we looked into were 21+ or 21+ after eight pm (which is when we wanted to go). All we want to do is rent a small room and sing k-pop songs. We’re all over 18 and we hadn’t anticipated our age being a problem… Does anyone know of any karaoke places that will let us in? (K-pop or otherwise)