Black Beat (블랙 비트) was South Korean boy band. Black Beat belonged to SM Entertainment. A few of their members have appeared elsewhere. But for the most part their public appearances (and subsequent popularity) have been limited. This can be attributed to a number of things: the waning popularity of poppy rap and the decreasing amount of SM Entertainment's PR power (which since 2004 has focused on a few core groups and singers). Their last appearance was the 2006 Winter SMTown. Their disbandment was confirmed in 2007 when lead vocalist, Jang Jin Young teamed up with Kim Sung Pil to form the R&B duo, ByJinSung.