They became insanely popular with their debut album "Backstreet Boys" back in 1996. The group sold more than 135 million records worldwide, becoming one of the world’s best-selling music artists in the history of music. According to Billboard, Backstreet Boys is the only boy band to have their first seven albums reach the top 10 on the Billboard 200 record chart.

A. J. McLean (38 years old)