[Pre-debut] AtHeart - Good Girl (AtHeart) | Official Performance Video

[Pre-debut] AtHeart - Good Girl (AtHeart) | Official Performance Video Follow@AtHeart: Website: https://www.atheart.me/ YouTube:    / @atheart_titan   X: https://x.com/atheart_titan Instagram:   / atheart.titan   Facebook:   / atheart.me   TikTok:   / atheart.titan   Weibo: https://weibo.com/athearttitan #AtHeart #앳하트