2NE1's Park Bom is making a special appearance in a song festival for�MBC's�'Infinity Challenge'. According to a representative, the idol will make a surprise appearance on June 9th's 'Seohae Ahn Highway Song Festival', held at a rest area in Chungnam. Park Bom is preparing to sing a song for 'GG', a collaborative unit between Big Bang's�G-Dragon and comedian�Park Myung Soo. Titled,�'I'm Having An Affair', it was composed by G-Dragon, Teddy, and Kush. How did Park Bom get tied into such an unusual event? Apparently, the songstress was around the studio when the song was being created, and decided to take part in its performance. 'Seohae Ahn Highway Song Festival' is taking place for the first time in two years; Infinity Challenge's other song festivals were in 2007 and 2009. The event will host other singer-comedian pairs, such as�Yoo Jae Suk and Lee Juk, Gil and Bada, Jung Hyung Don and Jung Jae Hyung, Noh Hong Chul and Psy, Jung Joon Ha and Sweet Sorrow, and finally�Haha and 10cm. Source: Star News via Nate