突然ですが、アイドル始めました (Totsuzen Desu ga, Idol Hajimemashita)

Background
"It’s Sudden, But We Became Idols" is an original song by Yucha-P.

This song has entered the Hall of Fame. It is featured in the albums NICOBARNING HOHETO Vocalo ver and EXIT TUNES PRESENTS Vocalofanatic feat. GUMI、IA、MAYU.