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