[Romanized:]

Be-be-be-be-be-best friend
(Ooh, na-na-na-na)
Be-be-be-be-be-best friend
Best friend, we are (Ooh, na-na-na-na)

Gwaenseure saeroun deunggyotgil happy, happy
Bangawo jjakkkung daily, daily
Kkumkkudeut paran haneul majeo da
Oh, na-na-na, na-na-na (Blue sky)
Seollemdo gureumdeul cheoreom monggeul beonjyeoga
Chingudeuldo nacheoreom tteollineungabwa
Hilkkeut bojana hilkkeut bojana
Ja high, high, high five (We like that, we like that)

Ttaeron jiltuhago (joatdagado)
Gachi utdaga torajigido hae
(Byeonhameopsi urin still best friend)
Neomeojyeodo gwaenchana hamkkehalge
Eodideun, yeah, duldo eopsi sojunghae
Dodaeche museun mari deo pillyohae? What?

We can, we can (Ooh, oh-ooh, oh-oh)
Mwodeun hal su isseo we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
Gachi gaja urin long run
Yeah, yeah, yeah, yeah
Neoro twinkle, twinkle, naui segyen bichi na
Wow, wow, wow
Ganeunghae we can, we can, you know, yeah, yeah

Bichi na bichi naneun naui segyero
Hana dul set hago jumphae ppalli
Peojeulcheoreom ttak maja
Urin seoroege kkeullyeo, bwabwa
Hanaga doen universe
Jiguwa dalcheoreom maemdolgo inneun geol
Haruharu dallajineun punggyeong sok
Muldeureoganeun neowa naui ujeongeun growin' up

Ttaeron jiltuhago (joatdagado)
Gachi utdaga torajigido hae
(Byeonhameopsi urin still best friend)
Neomeojyeodo gwaenchana hamkkehalge
Eodideun, yeah, duldo eopsi sojunghae
Dodaeche museun mari deo pillyohae? What?

We can, we can (Ooh, oh-ooh, oh-oh)
Mwodeun hal su isseo we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
Gachi gaja urin long run
Yeah, yeah, yeah, yeah
Neoro twinkle, twinkle, naui segyen bichi na
Wow, wow, wow
Ganeunghae we can, we can, you know, yeah, yeah

Go, go, go, go (Let's go)
Hangyen eopseo together (Together)
Eonjerado whenever (Whenever)
Dallyeogalge forever (Forever)
Bichi nage shine it up (Shine it up)
Bichi nage shine it up (Shine it up)
Segyereul balkyeo shine it up (Oh, my best friend)
Dodaeche museun mari deo pillyohae? What?

We can, we can (Ooh, oh-ooh, oh-oh)
Mwodeun hal su isseo we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
Gachi gaja urin long run
Yeah, yeah, yeah, yeah
Neoro twinkle, twinkle, naui segyen bichi na
Wow, wow, wow
Ganeunghae we can, we can, you know, yeah, yeah

Be-be-be-be-be-best friend
Be-be-be-be-be-be-best friend
Be-be-be-be-be-best friend
Nae segyeneun
Be-be-be-be-be-best friend
Be-be-be-be-be-be-best friend
Be-be-be-be-be-best friend
Jeonbu neoya

[Korean:]

Be-be-be-be-be-best friend
(Ooh, na-na-na-na)
Be-be-be-be-be-best friend
Best friend, we are (Ooh, na-na-na-na)

괜스레 새로운 등굣길 happy, happy
반가워 짝꿍 daily, daily
꿈꾸듯 파란 하늘 마저 다
Oh, na-na-na, na-na-na (Blue sky)
설렘도 구름들 처럼 몽글 번져가
친구들도 나처럼 떨리는가봐
힐끗 보잖아 힐끗 보잖아
자 high, high, high five (We like that, we like that)

때론 질투하고 (좋았다가도)
같이 웃다가 토라지기도 해
(변함없이 우린 still best friend)
넘어져도 괜찮아 함께할게
어디든, yeah, 둘도 없이 소중해
도대체 무슨 말이 더 필요해? What?

We can, we can (Ooh, oh-ooh, oh-oh)
뭐든 할 수 있어 we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
같이 가자 우린 long run
Yeah, yeah, yeah, yeah
너로 twinkle, twinkle, 나의 세곈 빛이 나
Wow, wow, wow
가능해 we can, we can, you know, yeah, yeah

빛이 나 빛이 나는 나의 세계로
하나 둘 셋 하고 jump해 빨리
퍼즐처럼 딱 맞아
우린 서로에게 끌려, 봐봐
하나가 된 universe
지구와 달처럼 맴돌고 있는 걸
하루하루 달라지는 풍경 속
물들어가는 너와 나의 우정은 growin' up

때론 질투하고 (좋았다가도)
같이 웃다가 토라지기도 해
(변함없이 우린 still best friend)
넘어져도 괜찮아 함께할게
어디든, yeah, 둘도 없이 소중해
도대체 무슨 말이 더 필요해? What?

We can, we can (Ooh, oh-ooh, oh-oh)
뭐든 할 수 있어 we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
같이 가자 우린 long run
Yeah, yeah, yeah, yeah
너로 twinkle, twinkle, 나의 세곈 빛이 나
Wow, wow, wow
가능해 we can, we can, you know, yeah, yeah

Go, go, go, go (Let's go)
한곈 없어 together (Together)
언제라도 whenever (Whenever)
달려갈게 forever (Forever)
빛이 나게 shine it up (Shine it up)
빛이 나게 shine it up (Shine it up)
세계를 밝혀 shine it up (Oh, my best friend)
도대체 무슨 말이 더 필요해? What?

We can, we can (Ooh, oh-ooh, oh-oh)
뭐든 할 수 있어 we can
Best friend, best friend (Ooh, oh-ooh, oh-oh)
같이 가자 우린 long run
Yeah, yeah, yeah, yeah
너로 twinkle, twinkle, 나의 세곈 빛이 나
Wow, wow, wow
가능해 we can, we can, you know, yeah, yeah

Be-be-be-be-be-best friend
Be-be-be-be-be-be-best friend
Be-be-be-be-be-best friend
내 세계는
Be-be-be-be-be-best friend
Be-be-be-be-be-be-best friend
Be-be-be-be-be-best friend
전부 너야