I am not a fan of any of it, but my cousins play it. The 4 girls are my cousins. The 2 older have been playing for years, won many competitions and had music released with other groups.
All 4 play multiple instruments and sing. And actually are as nice as they seem on stage haha. I have no idea who the guy is. Part of the band. Seems they're putting an album out in Aug, though.