On June 9th, Japanese R&B artist Aoyama Thelma took the stage of Mnet's "M! Countdown" for a special duet performance of "Without U" with the Yoon ladies of 4minute! Cube Entertainment revealed, "Aoyama Thelma is visiting Korea in promotion of her new album. For the week she is staying here, she will be performing with 4minute twice. Her first stage will be on 'M! Countdown', which will be followed by her second on 'M! Sound Plex.'" Aoyama Thelma recently released "Love Story", and her R&B track, "Without U", has been especially earning interest amongst Korean fans thanks to 4minute's guest featuring. Check out her performance below with Jiyoon and Gayoon! Source + Photos: Star News via Naver