SS501 (Double S Oh Gong Il in Korea) is a South Korean boyband under management of Daesung Entertainment, also known as DSP Entertainment. The name of the band is a combination of the alphabet and numbers that have special meanings in them. The first S stands for Super. The second S is an abbreviation for Star. The number 5,0 and 1 means five members united as one forever. Their official fan club is known as Triple S