SEOUL — South Korean rapper Psy said Friday he would release the highly-anticipated follow-up to his global hit “Gangnam Style” in April, and hold a large concert in Seoul to mark the occasion. Psy, sporting his signature sunglasses, announced the planned release in Korean and English in a video uploaded to YouTube, which featured subtitles in Chinese, Thai, Spanish, French, Portuguese and Indonesian. “April 2013 is a new single, worldwide all at the same time. And I'm gonna do a concert... you can see it live, on YouTube. Just for you,” he said before launching into new dance moves for the remixed version of “Gangnam Style”. — AP