[1][2] The group consisted of five members: Moon Hee-joon, Jang Woo-hyuk, Tony Ahn, Kangta, and Lee Jae-won.

[4][5] The group broke up in 2001 following a contract disagreement with SM Entertainment, prompting hundreds of fans to stage protests against the company.

Jang Woo-hyuk joined the group after attracting Lee's attention by winning first place in a dance contest.

Finally, Tony Ahn joined the group after auditioning for Lee in Los Angeles.

[9] We Hate All Kinds of Violence, the group's debut album, was a success, selling 1.5 million copies.

[12] The album included the singles "Wolf and Sheep", "Happiness", and "We Are the Future", the first of which was banned from airplay due to its use of strong language.

The album, which featured a variety of styles including hardcore hip hop, sold more than 1.1 million copies by the following year.

performed alongside Michael Jackson and popular South Korean girl group S.E.S.

[18] The album's title track was about a 1999 fire that killed kindergarten students at the Sealand Youth Training Center in South Korea.

[21] The group became immensely popular among Chinese teenagers, and reportedly sold around 400,000 copies of their albums in the country by January 2000.

[23] That year, the group also starred in the sci-fi movie Age of Peace, in which they portrayed soccer players living in a futuristic society.

Some fans blocked roads and threw rocks at the company headquarters' windows to protest what they believed were unjust actions against H.O.T.

Entertainment concerned the group members' pay, which was only about $10,000 USD for every 1 million albums they sold.

[citation needed] An, Lee and Jang signed to Yejeon Media and formed a three-member group called jtL, which experienced moderate success before they disbanded in 2003.

was featured on the South Korean variety show Infinite Challenge in the "Saturday, Saturday is for Singers" (토토가) special, a recurring segment on the show which showcases famous singers from the 1990s and was notably responsible for the reunion of their first-generation counterparts Sechs Kies.

[30][31] In 2016 it was reported that the members had been in contact with one another and met with Lee Soo-man to discuss the possibility of reuniting for the 20th anniversary of their debut but it ultimately did not come to fruition.

would be independently holding their reunion concert, 'Forever [Highfive Of Teenagers]', on October 13 and 14 in Seoul Olympic Main Stadium with 100,000 attendees.