Album Released Format Recorded Length Label Writers Producer Previous Next "Holler" is a song recorded by the sub-unit TaeTiSeo and is the sub-unit's lead single from their second EP which shares the same name. It is also the first track from that album. The song was initially given to Japanese singer Mizuki Watanabe under the title "Hello Me!", which was a B-side of her 2007 single, "Best Friend".