to the song "Pick It Up" by rapper Famous Dex. Shortly after, the group premiered their pre-debut web series, KQ Fellaz American Training, showcasing the eight members traveling to Los Angeles, California, to train in dance at The Millennium Dance Complex. During this period, a ninth trainee, Lee Junyoung, was promoted as a member of KQ Fellaz but ultimately not added to the final lineup. For the finale of the web series, KQ Fellaz released the music video of "From", a song composed and produced by Hongjoong. KQ Entertainment announced a debut reality show with a set of three teasers. The second teaser, released on July 3, 2018, revealed the official name for the group: Ateez. The show, Code Name Is Ateez, premiered on Mnet on July 20. On October 24, 2018, Ateez released their debut EP, Treasure EP.1: All to Zero, alongside music videos for the two lead singles "Pirate King" (Korean: 해적왕; RR: Haejeogwang) and "Treasure". Their debut showcase was held on the same day. The album peaked at number seven on the weekly Gaon Albums Chart, selling 23,644 copies in 2018. 2019: Breakthrough, first tour, and first studio album On January 3, 2019, Ateez announced their first comeback EP, Treasure EP.2: Zero to One, with a teaser photo on their social media accounts. The EP was released on January 15, alongside a music video for the lead single "Say My Name". A music video for the track "Hala Hala (Hearts Awakened, Live Alive)" from the EP was released on February 7. On January 24, Ateez announced their first tour, The Expedition Tour, with March dates in five American cities: New York City, Chicago, Dallas, Atlanta, and Los Angeles. The tour was then extended through April with the addition of European shows in London, Lisbon, Paris, Berlin, Amsterdam, Milan, Budapest, Stockholm, Warsaw, and Moscow. All American and European shows reportedly sold out. On May 17, Ateez performed at their first joint K-pop concert, KCON 2019 Japan, in Chiba, Japan. In early June, The Expedition Tour was extended again, this time visiting Australian cities Melbourne and Sydney in August. Ateez released their third EP, Treasure EP.3: One to All, on June 10. The lead single, "Wave", was selected via fan vote, winning in the competition over "Illusion". Music videos for both songs were released on the same day. On June 20, Ateez won their first music program award on