Singer IU was recently chosen to be the model for the clothing brand, 'Y'SB'. She completed her photoshoot for the 2011 Spring/Summer collection, which has been labeled as "European Young Artistic Casual". Through Y'SB's official website, they revealed a short video clip with the message, "Y'SB and IU's collaboration...April 3, 2011...we're inviting everyone to IU's surprise party. Will you accept the invitation?" At the end of the clip, IU is seen looking into the camera and handing an invitation. Recently, a "making-of" video of the photoshoot has also been revealed. Through this clip, viewers were able to see IU posing in various outfits which will be available through Y'SB this spring. Check out the making-of video below! Source: Y'SB and YouTube