The band is Backstreet Boys, an American pop band formed in the late 1990s. They became popular in the 1990s with hit singles like "As Long As You Love Me" and have sold over 75 million albums worldwide. The band has 4 members who play various instruments like drums, piano, and guitar. Nick Carter is the lead singer and their latest single is "AG McLean", which the document's author has not downloaded yet.