INFINITE's L and Sung Kyu recently unveiled a live duo performance video. In the video, Sung Kyu sang�Jason Mraz and Colbie Caillat's 'Lucky' with fellow labelmate, Ji Sun, while L strummed along with his acoustic guitar. When the video was released, many INFINITE fans began to wonder whether the two were going to make a comeback as a separate unit. However, their agency, Woolim Entertainment, denied the rumours by stating, "Many fans seem to be anxious, as there are many male idol unit groups surfacing these days. Rumors about INFINITE members making a unit group comeback are groundless." INFINITE is currently preparing for their 2nd mini-album. Source: Newsen via Nate