Numerous idol stars have been showing their support of Orange Caramel's comeback with "Shanghai Romance", including the likes of Super Junior's Choi Siwon & B2ST's Yong Jun Hyung. Siwon recently updated his Twitter saying, "Please show your love and support for Orange Caramel's new single "Shanghai Romance" written by our very own Heechul. I am anxious to see what the song is about." B2ST's Yong Jun Hyung tweeted, "Orange Caramel's "Shanghai Romance" by Hee-nim is out!? Don't you think we oughta give it a listen, everyone?" After School's Kahi also showed her support by retweeting, "Orange Caramel's Project Asia version 2! Their new single as well as the MV for "Shanghai Romance" has just been released! Please show them your support! (And no illegal downloading!!^^) They worked really hard, please show them some love! MV go go" Orange Caramel released their new single "Shanghai Romance" on the 13th and made their first comeback performance on KBS 2TV's Music Bank. Source & Image : TVReport via Nate