Wanna One debuted on August 7, 2017 at Gocheok Sky Dome with an audience of around 20,000 fans. This marked a historic moment in K-pop as the first group to ever debut in a dome stadium. The show Produce 101 Season 2 had been such a huge phenomenon in South Korea that Wanna One’s debut Show-Con was highly anticipated. As soon as the Interpark website opened its first day of ticketing available only for fanclub members a month prior to the show, the website received 530,000 visitors, making it crash immediately. The lucky ones who managed to get their tickets did it in 1 minute!
On the same day of their debut, their album 1X1=1(To Be One) was released on all streaming sites. The title track “Energetic” achieved a real-time all-kill and 99,748 unique listeners on Melon after 1 hour. Their MV also reached 4,034,795 views on YouTube during the first 24 hours (and is currently their most viewed MV with 99 million). On August 16, “Energetic” got its first music show win on MBC Every1 Show Champion and was the first of 15 total music show wins, making “Energetic” the song with the most wins in 2017. Wanna One was also the male group with the most overall music show wins that year, including 8 wins from “Beautiful” for a total of 23 wins.
To this date, their debut album 1X1=1(To Be One) and subsequent repackage 1-1=0 (Nothing Without You) reached a total of 1.4 million copies sold, which makes Wanna One the first ever rookie group to achieve more than 1 million album sales. They reached a “Million Seller” status at the end of 2017 only 101 days after their debut.