Did you all catch 15&'s comeback stage on 'K-Pop Star 2' this past Sunday? Judging by 15&'s 'all-kill' on music charts immediately upon release of their new single "Somebody", it seems many of the domestic fans have and with good reason!

15& performed a stellar live performance of the catchy tune and showcased their impressive singing ability and overall chemistry together as a duo, making the comeback stage a must-see performance.

The talented duo has now released a rehearsal clip to take you behind-the-scenes of their comeback stage. The girls were seen celebrating their comeback with some cake and also asked fans to show their love and support.

Check out the clip below!