Having made a successful debut last week on all 4 music shows, power vocal singer and dancer G.NA returned to today's stage on Music Core to continue promotions for I'll Back Off So You Can Live Better. Unfortunately, BEAST's Junhyung wasn't able to make it today due to other commitments this week, however 4minute's talented rapper HyunA filled in and she did not disappoint! Check out the incredible performance below. Check back here for her Inkigayo performance tomorrow where BEAST's Doojoon will fill in for Junhyung!