The boy group from 'Produce 101' season 2 held their debut press conference and concert at Gocheok Sky Dome in front of more than 20,000 fans in Seoul on August 7. Regarding their extravagant debut at the grand stadium, Ha Sung Woon stated, "In the past, I've attended a BTS concert here. At the time, I wondered when I would be able to stand on this stage too, and it actually happened so fast that it feels like a dream. I didn't think I'll ever make it. It still feels unreal. I was very excited as well as nervous during rehearsal. It feels like a dream and I'm happy to perform at the Gocheok Sky Dome."

SEE ALSO: EXO announces plans for a fan meeting this year

Kang Daniel added, "I've seen Gocheok Sky Dome when watching EXO and BTS sunbaenims' performance videos. I wondered when I would be able to stand here. It feels like a dream to be making my debut at the Gocheok Sky Dome, which I don't think I'll be able to come back again."

Ong Sung Woo also commented, "I watched and learned from EXO and BTS sunbaenims' performance and music, which I consider as (like) the textbook. It's really an honor. I'm determined to work hard and show a good side as a rookie."

You can watch Wanna One's highly anticipated ''Energetic'' debut MV here.