[6] On July 3, it was reported that the duo participated in writing the lyrics of every song on the album and helped compose the tracks "Telephone", "Fly Away" and "On Me".

[16] The album opens with the titular "1 Billion Views", a trendy hip hop song with a funky guitar sound and addictive disco rhythm.

Featuring fellow singer Moon, the song finds the duo "wanting to see one's loved one" by playing their video repeatedly.

[17] The second track "Say It", featuring Penomeco (who also co-wrote the lyrics), is described as a hip hop song that combines a heavy 808 base and bossa nova rhythm in order to "feel the summer vibe".

[20] "On Me", Sehun's solo, in which he participated in both writing and composing, is described as a trap hip hop song with a rhythmical bass & strong synthesizer.

In the lyrics, Sehun and Chanyeol look back on their past and present lives and recall the scenery around Apgujeong Rodeo station during their trainee days.