BEAST (beast) is a 6-Member male music cube entertainment Korea belonging to the group.

EAst of the Bay of Biscay, called the group name is ' l l a T Standing Boys ' as it stands, the "East Asian for boys". Sign is original with the name ' B ' 2 S T, an attempt was made to live the day before the official debut debut B E A member of ' notation ' S. However, the album cover logos are used as a ' B ' 2 S T.
October 14, 2009, the first mini album, and released The Beast Is the B2ST debut on March 1, 2010, the second mini album, released by The New Era Of Shock is the "Shock" in the Mnet's m countdown, the first place. The same year, September 28, the third is the debut mini album, Mastermind, the KBS's music Bank "as 〈manufacture breath 〉 for the first time in the first place, followed by a November 9, the fourth mini-album Lights Go On Again to release the song" Beautiful "SBS put on community Verizon.

December 12, titled the BEAST TO WELCOME the first exclusive concerts to AIRLINE.[3] on March 16, 2011, the single "Shock" to release the Japan debut on May 17, the same year, the first Studio album, released the song "Fiction And Fact" Fiction were the Triple Crown. Also, June 15, Japan's second single "Bad Girl", released in Japan on August 10, and So the first Studio album, release Beast.