They became one of the biggest stars in the Korean entertainment industry during their active time between 1995 and 2001 and sold millions of albums and records across Asia.

With Jung-nam taking up rap and choreography and Jong-kook in charge of vocals, the group released their first album, 280 km/h Speed, in August 1995.

However, during the album's promotions, their company's CEO was revealed to have assaulted its singers and stolen hundreds of millions of won in profits, and Turbo went into seclusion.

[7] After a month-long rest, Kim returned to activities, and the album, entitled Perfect Love, was eventually released in October 1998.

On April 7, 2001, Turbo's agency Star Music announced that Kim Jong-kook had left the company due to contract expiration.

A music video for "History" was also released, featuring transgender model and singer Harisu.Prior to the reunion, the group performed in many television shows like MBC's Infinite Challenge "Saturday, Saturday's: I Am a Singer Special" on December 27, 2014, on which they performed "My Childhood Dreams", "Twist King", "Love Is (3+3=0)" and "White Love".

Their title song track "Again" features comedian Yoo Jae-suk, and the music video has many guest appearances, including Lee Kwang-soo and Cha Tae-hyun.