Boyfriend's maknae Minwoo shared his special memory of working with the talented�IU. Before debuting with Boyfriend, Minwoo was featured in K.Will's music video for "Can't Open Up My Lips" as the boy who had a crush on IU. Following the MV release, he�became the #1 searched topic for the term, "IU's younger man." When asked about what it was like working with IU, Minwoo answered, "She was a lot prettier in real life." He added, "She's a sunbae I admire and like. It was the role of a boy who had a one-sided crush, but I was happy with just the fact that I was able to work with her." The filming of the music video was said to have taken 12 hours. As a gift of support, IU also surprised Minwoo with a singing performance. Minwoo said, "IU sang me a song during break time and she was really good. She must have been tired, so it was memorable to see her care about me." Source: Seoul NTN via Nate