[Verse 1: Jihyo, Chaeyoung, Dahyun]
Baeteun sumeul masin dwi hansumman namgyeodwotji
Nega nareul tteonan dwi oneulman salge dwaetji
Round and round and round
Bireo nega dwidorabogil
Sound that makes me high and low
Nal boreo wajwo (Nal boreo wajwo)

[Pre-Chorus: Nayeon]
Mannado munjegetji
Eotteon maldo eopgesseuni
Geujeo majuhan chaero oh-oh-oh

[Chorus: Jeongyeon, Chaeyoung, Tzuyu, Dahyun]
Behind the mask, yeah, who, yeah
I wonder if you're smiling
Who, yeah, ooh, yeah
I wonder if you're crying
Let me ask in the mask
I'm lonely but if you're trying
Say yes, ooh, yeah

[Verse 2: Mina, Jeongyeon, Momo]
Bichеul naеgi wihaeseo nanеun da tabeoryеosseo
Ojik neoreul wihaeseo naeildo beotigesseo
Round and round and round
Mideo nega nal arabogil
Sound that makes me high and low
Gieokaenaegil
[Pre-Chorus: Jihyo]
Nunmul jeojeo itgetji
Sumeul meogeumeun chaero
Naman barabomyeonseo oh-oh-oh

[Chorus: Sana, Chaeyoung, Mina, Dahyun]
Behind the mask, yeah, who, yeah
I wonder if you're smiling
Who, yeah, ooh, yeah
I wonder if you're crying
Let me ask in the mask
I'm lonely but if you're trying
Say yes, ooh, yeah

[Post-Chorus: Sophiya, Tzuyu, Momo, Sana]
Ooh-ooh, ooh-ooh
Nae ireumeul bulleojwo
Ooh-ooh, ooh-ooh
Yejeoncheoreom once again
Ooh-ooh, ooh-ooh
Georireul jopyeojwo unmyeongcheoreom twice again

[Bridge: Mina, Nayeon, Jihyo]
Rain and pain are falling do-o-o-own
But don't cry-y-y-y, it will dry-y-y-y
Bogo sipeo jogeum deo-eo-eo-eo, gakkai yea-a-ah
No matter what they say
Behind the text, yeah, who, yeah
[Chorus: Jeongyeon, Chaeyoung, Tzuyu, Dahyun]
Behind the mask, yeah, who, yeah
I wonder if you're smiling
Who, yeah, ooh, yeah
I wonder if you're crying
Let me ask in the mask
I'm lonely but if you're trying
Say yes, ooh, yeah

[Post-Chorus: Sophiya, Nayeon, Jihyo]
Ooh-ooh, ooh-ooh
Nae ireumeul bulleojwo
Ooh-ooh, ooh-ooh
Yejeoncheoreom once again
Ooh-ooh, ooh-ooh
Georireul jopyeojwo Unmyeongcheoreom twice again

[Outro: Jihyo]
Behind the mask, yeah, who, yeah