The trainees that have been selected to record the song were Fantagio Entertainment's Ong Seong-woo, Ardor & Able Entertainment's Ha Sung-woon, Jellyfish Entertainment's Yoon Hee-seok, HF Music Company's Park Woo-dam, Pan Entertainment's Lee Ji-han, and Pledis Entertainment's Hwang Min-hyun.
The song is described as a progressive house genre based on electronic dance music (EDM) that showcases the electric guitar and lead sound. The lyrics were described as "introducing yourself to the national producers", and along with the addictive melody of the chorus that will harmonize and make you feel the charms of the 101 boys.
The song was arranged and composed by Ryan S. Jhun, Emile Ghantous, Keith Hetrick, Appu Krishnan, Cheryline Lim, Jason Jones, Zaydro, and Rheat. It was written by unnamed songwriters working for the show, only credited as PRODUCE 101. The song was rearranged by Ryan S. Jhun, Zaydro, and Rheat. Zaydro is also credited for the chorus of the song. It was recorded by Lee Hyun-jin and Jo Hye-min at Yagi Studio. The digital editing and mixing of the song was done by Jung Eun-kyung at Ingrid Studio. It was mastered by Jeon Woon at Sonic Korea.
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