Teen Top (Hangul: 틴탑) is a South Korean boy band formed by TOP Media in 2010. The group is composed of five members: C.A.P, Chunji, Niel, Ricky and Changjo. Originally a six-piece group (with L.Joe, filing for contract termination in February 2017), Teen Top debuted with their first single album Come into the World on July 9, 2010. Teen Top members Ricky and Niel were both child actors. Niel debuted through the musical Please, where he played the younger version of Joo Won's role. Ricky debuted in Seo Taiji's music video for "Human Dream" and later portrayed the young version of Song Seung-heon's character in Love Song. Four of Teen Top's Members such as Changjo, Niel, Cap, and L.Joe had an open Lotte World audition whereas the other members (Chunji and Ricky) had a closed audition. It took L.Joe two auditions before he could train unlike the other members

2010–2012: Debut, Roman, It's, aRtisT and To You

In July 2010, Teen Top made their debut with the title track, "Clap", off their debut single album Come into the World. A remixed version of "Supa Luv" by A-rex became a promotional vehicle for the American film Beastly in Asia. Teen Top's mini-album Roman, along with its title track "No More Perfume On You" released in July.

Teen Top during an open-air Inkigayo performance in 2012

In January 2012, Teen Top released their second mini album It's. Brave Brothers produced, wrote, composed and mixed all of its six tracks. On February 3, Teen Top won their very first award on KBS Music Bank since debuting with "Clap" on July 10, 2010. Moreover, they received the honor of performing the ending stage on MBC Music Core, followed by another win on SBS Inkigayo. aRtisT, Teen Top's third EP, was released on May 30 as a digital download, followed by the release of the music video for its title track "To You". Physical albums were released on June 4, 2012. With this album, the group gained much attention, topping major music charts.

2013: European Tour, No. 1, and Teen Top Class

In February 2013, Teen Top held their first European tour, "TEEN TOP SHOW! Live tour in Europe 2013", making stops in Germany, England, France and Spain. The track "I wanna love (사랑하고 싶어) was released in February 2013. They released their full album digitally and physically on the 25th. On August 25, Teen Top released their 4th mini album Teen Top Class with 장난아냐 (Rocking/No Joke) as the lead single.Teen Top won three music show trophies for "Rocking". The promotion cycle lasted shorter than usual, which led them to release another repackaged album titled Teen Top Class Addition on October 24 with 못났다 (Lovefool) as the lead single.

2014: High Kick world tour, Éxito, and Snow Kiss

In February, Teen Top held their "High Kick in Seoul" concert in Seoul's Olympic Hall. They then proceeded with their "High Kick" world tour in various countries such as Canada, China, Hong Kong, Japan, Russia, Taiwan, and South American countries like Colombia, Chile, Mexico, Panama, and Peru. In September, they released their fourth extended play, Exito with "Missing" as the lead single. They first performed "Missing" live at M Countdown on the 11th of September, prior to the album's release. The promotion cycle lasted shorter than usual, which led them to release a repackaged album, titled 20's Love Two Exitoo on the 10th of November. "I'm Sorry" was the lead single for the album, in which it was not promoted on music shows.

In November, they held their first concert and fan meet in Thailand, titled "My Dear Angels in Bangkok". In December, they held another concert but in four cities in Japan. In December, they released their first seasonal single album, Snow Kiss with the same title as the lead single.

2015–2016: Natural Born and Red Point

TOP Media was announced Teen Top hold their exclusive overseas solo concert "My Dear Angels" in Los Angeles at the ORPHEUM TEATER on April 11. This event was cancelled due to internal funding issues; Team Angel takes full responsibility for the cancellation. Their 6th mini album entitled "Natural Born Teen Top" on June 22 and the same day released the music video to the title song "Ah-Ah" a song written and produced by Black Eyed Pilseung and Sam Lewis. After its release, "Natural Born Teen Top" debuted at No. 1 on South Korean Gaon Albums chart as well as No. 13 on Billboard's World Albums chart.

On July 4, Teen Top held their 5th Anniversary Concert in Tokyo, Japan continued with stops in Seoul, Nagoya, Kobe and will end in Fukuoka on August 17. The group also attended KCON in New York alongside Girls' Generation and other artists on August 8, 2015. On July 31, Teen Top released digital single "Except for Me" for Brave Brothers 10th Anniversary album.[ Teen Top was a part of the 2015 Feel Korea in New Delhi tour in India, performing on August 29 at New Delhi's Sirifort Auditorium. On January 17, the music video for the title track, Warning Sign, came out. The next day on January 18, 2016, Teen Top released the mini album, Red Point. The album came in two versions: Chic ver. and Urban ver.

2017—present: High Five and L.Joe controversy

In early 2017, L.Joe cleared evidence of the group from his social media, deleting "Teen Top" from his Instagram username and turning his account private. On February 10, it was revealed that he had requested a termination of contract with his agency, TOP Media, after L.Joe reportedly had wanted more solo activities and was subsequently restricted. On April 10, 2017, Teen Top released their second studio album titled High Five and continued to promote as five.

On May 8, 2018, Teen Top released their eighth EP, Seoul Night, with the title track of the same name. The EP was released in two versions. On May 11, Teen Top's first stage for this comeback was held on M Countdown!, performing "Seoul Night" and "Let's Play"- Wikipedia