The members of Electroboyz expressed their thanks toward SISTAR member Hyorin who stood on stage with them. The idol lent her voice for the Electroboyz' track "Ma Boy 2" and showed her loyalty by standing on stage with them on a special stage of  SBS 'Inkigayo' on December 11th. The next day, Electroboyz member Maboos shared the above photo on Twitter and wrote, "I've been blessed with women.. with Brave Girls' Yejin and vocal queen SISTAR's Hyorin.. Each day I stand on stage is exciting. Hyorin~ I know that you should rest on your days off, but thank you for making the time to stand on stage with us." In the photo, Electroboyz members Maboos, 1Kyne, and Chakun along with SISTAR's Hyorin are dressed in all-black ensembles, posing side by side. The four smile at the camera as Hyorin proudly holds their 'Ma Boy 2' album. Netizens who saw the photos left comments such as, "Hyorin is so loyal to perform on her day off", "They are truly blessed with women", "They look close", "I like the song more and more every time I listen to it", and more. Source & Image : Newsen