Honto ni supesharu na pātī no hajimari wa
Doki doki shichau yō na mahō kakerareta mitai
Naisho de sagashiteta anata no suki na koto
[Mi/So] (Pikku tto pikku appu!)
Atsumete shimai konda bokkusu ni ribon no kakete

Yorokonde hoshī bikkuri sasetai
[La/Mi/So] Uraomote mitai na kimochi
Itazura to yasashisa ga
Hiraite hiraite
Kongo shichau JACK IN THE BOX (Let’s Party)
Sa~a hajimeyo!

Surī tū wan
Happī bāsudei￫YOU!
Saikō no tanjōbi! (for YOU!) O.me.de.to.u
Odoroi chatte ureshisō na
[La/Mi/So] Egao wo misete ne (Yeah! Yeah! Yeah!)
Sapuraizu! (Kyā!) Saikō no puraizu! (for YOU!)
Pu.re.ze.n.to♪
[Ar/Mik] Kyō kara motto
[La/Mi/So] nakayoku natchaou
Omedeto~ DEAR MY FRIEND!
HAPPY BIRTHDAY￫YOU!

Issho ni ne! Iru hō ga tanoshiku natchau nda yo
[Ar/Mik] (Sō nanda zettai!)
Dakara ne, tomodachi ni natta nda kore tte mirakuru?!

Kossori purojekuto rakkī hapuningu
[So/Ar/Mik] Uraomote ga attatte ī ne!
Omoiyari × warufuzake
Hirakeba hirakeba
Tobidashichau JACK IN THE BOX! (Let's Party)
Kurakkā de pān!

Surī tū wan
Happī bāsudei￫YOU!
Saikō no tanjōbi! (For YOU!) O.i.wa.i.taimu
Hora ne yappa! Waratchau yo ne
Suteki na SHOW TIME! (Yeah! Yeah! Yeah!)
Sapuraizu! (Kyā!) Saikō no puraizu! (For YOU!)
Pu.re.ze.n.to♪
[Ar/Mik] Mae yori motto [La/Mi/So] nakayoku natchau yo
Omedeto~ DEAR MY FRIEND!

Taisetsu na anata, otanjōbi omedetō
Kēki ni ne tomotteru kyandoru wo fu~tto...fuichattara

Surī tū wan
Happī bāsudei￫YOU!
Saikō no pātī wo (For YOU!) Ha.ji.me.yo.u
Odoroi chatte ureshisō na
[La/Mi/So] Egao ni naru ne! (Yeah! Yeah! Yeah!)
Tomodachi ni (YES!) natte kurete! (WE'RE FRIENDS!) A.ri.ga.to.u♪
[Ar/Mik] Ima made zutto [La/Mi/So] kore kara mo kitto
Daisuki! DEAR MY FRIEND...
HAPPY BIRTHDAY! IT'S YOU!

Honto ni supesharu na pātī no hajimari wa
Doki doki shichau yō na mahō kakerareta mitai
Naisho de sagashiteta anata no suki na koto
[Mi/So] (Pikku tto pikku appu!)
Atsumete shimai konda bokkusu ni ribon no kakete

[La/Mi/So] Yorokonde hoshī [Shi/Do/Le] bikkuri sasetai
Uraomote mitai na kimochi
Itazura to yasashisa ga
Hiraite hiraite
[Shi/Do/Le] Kongo shichau JACK IN THE BOX (Let’s Party)
Sa~a hajimeyo!

Surī tū wan
Happī bāsudei￫YOU!
Saikō no tanjōbi! (for YOU!) O.me.de.to.u
[Shi/Do/Le] Odoroi chatte [La/Mi/So] ureshisō na
Egao wo misete ne (Yeah! Yeah! Yeah!)
Sapuraizu! (Kyā!) Saikō no puraizu! (for YOU!)
Pu.re.ze.n.to♪
[Shi/Do/Le] Kyō kara motto
[La/Mi/So] nakayoku natchaou
Omedeto~ DEAR MY FRIEND!
HAPPY BIRTHDAY￫YOU!

Issho ni ne! Iru hō ga tanoshiku natchau nda yo
[Shi/Dor/Le] (Sō nanda zettai!)
Dakara ne, tomodachi ni natta nda kore tte mirakuru?!

[La/Mi/So] Kossori purojekuto [Shi/Do/Le] rakkī hapuningu
Uraomote ga attatte ī ne!
Omoiyari × warufuzake
Hirakeba hirakeba
Tobidashichau JACK IN THE BOX! (Let's Party)
Kurakkā de pān!

Surī tū wan
Happī bāsudei￫YOU!
Saikō no tanjōbi! (For YOU!) O.i.wa.i.taimu
[Shi/Do/Le] Hora ne yappa! [La/Mi/So] Waratchau yo ne
Suteki na SHOW TIME! (Yeah! Yeah! Yeah!)
Sapuraizu! (Kyā!) Saikō no puraizu! (For YOU!)
Pu.re.ze.n.to♪
[Shi/Do/Le] Mae yori motto [La/Mi/So] nakayoku natchau yo
Omedeto~ DEAR MY FRIEND!

[La/Mi/So] Taisetsu na anata, [Shi/Do/Le] otanjōbi [Mi/So/Shi/Do/Le] omedetō
Kēki ni ne tomotteru kyandoru wo fu~tto...fuichattara

Surī tū wan
Happī bāsudei￫YOU!
Saikō no pātī wo (For YOU!) Ha.ji.me.yo.u
[Shi/Do/Le] Odoroi chatte [La/Mi/So] ureshisō na
Egao ni naru ne! (Yeah! Yeah! Yeah!)
Tomodachi ni (YES!) natte kurete! (WE'RE FRIENDS!) A.ri.ga.to.u♪
[Shi/Do/Le] Ima made zutto [La/Mi/So] kore kara mo kitto
Daisuki! DEAR MY FRIEND...
HAPPY BIRTHDAY! IT'S YOU!