Wanna One sang a "Summer Story" on the August 26 installment of 'Immortal Song'.

SEE ALSO: Koreans are siding with Min Hee Jin over HYBE & Bang Si Hyuk following her emotional press conference

The 'Produce 101' hit group made their first entrance on the DJ DOC special of the show. When asked if they realize how popular they are yet, the boys responded, "We realize it just by being invited on 'Immortal Song'. We never thought we could sing a major sunbae's song. Thank you."

They also said before their performance, "The survival show we appeared on let us shine individually, but here, we can show Wanna One as a group. We'll do our best." Wanna One put on a refreshing and energetic rendition of "Summer Story", remixing the track with their 'Produce 101' theme "Me, It's Me".

Performance:

SPOILERS BELOW:

The boys of Wanna One were able to defeat Hong Jin Young in the round, and they also tied for 1st place with Jisook and Gunjo. Congrats to Wanna One!