On March 19, Wanna One's comeback show 'Comeback Wanna One | Promise You' aired on Mnet. On the special music show, Wanna One took the time to communicate with their fans, and also performed their new title song "Boomerang" for the first time.�

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In the�middle of the event, Wanna One was informed that their new album has hit #1 on Mnet chart.�

Hearing the delightful news, Wanna One members gave a traditional bow to their fans and commented, "Only a short time has passed since it has been released but thank you for listening to it a lot."