SS501

SS501 (pronounced as Double-S Five-Oh-One or Deo Beul E Seu Oh Gong Il,is a South Korean boy band formed under the management of DSP Media, formerly known as Daesung Entertainment and DSP Entertainment.
he group debut in 2005 with five members: kim Hyun Joong, Heo Young Saeng, Kim Kyu Jong, Park Jung Min and Kim Hyung Jun.

The name of the band is a combination of letters and numbers that have special meaning. The first “S” stands for “Superstar". The second “S” is an abbreviation for "Singer". The combination of 5, 0, and 1 symbolizes "five members united as one forever".