He returned to South Korea after a long absence, and revealed his latest single "Moai". It was the first release of Seo Taiji's ambitious 3-part "mystery project", which was followed by another single, "Bermuda Triangle" which was put up as a digital single. The third part, Atomos Part Secret, was released on March 10. He had a promotion called "Missing Taiji", where there were false rumors that Taiji went missing, only to return on the "Wormhole" concert day. In his single "Moai", Taiji reinvents his sound, and introduces a new experimental style he calls "nature pound". "Moai" draws inspiration from the mysterious statues of Easter Island which had long fascinated him since his childhood. He performed at the 2008 ETPFEST which he spearheaded to promote his comeback alongside bands such as The Used, Dragon Ash, Death Cab for Cutie and Marilyn Manson.