The various sets of album jacket photos that Seo In Young teased her fans with during this past week had been leaving many curious as to what exactly her comeback dance and concept would be, but fans need not wait any longer, as the singer is finally back on the stage of MBC 'Music Core' once again with her title track, "Into the Rhythm"! If you haven't checked out her MV yet, you can do so by clicking here. Otherwise, check out her performance below!