[Jess] Ayo SA!

[Jess] Yeah yeah

Sijakhae bolkka

Eomeo

[Star] Yae jom bwara yae museun iri isseotgillae meoril jallatdae eung

Eomeo

[Jess] Tto yae jom borago meoributeo balkkeutkkaji seutairi bakkwieosseo

Wae geuraetdae

Gunggeumhae jukgenne wae geuraetdae

Malhae bwabwa jom

[SooJi] Ha ha!

Let me introduce myself

Here comes trouble! Wooo~

Ttara hae

[All]Oh

Oh~Oh~Eh~Oh ([Ariana] Eh–Eh–Eh–Eh–Eh)

Oh~Oh~Eh~Oh~

[Ally] Neo jallasseo jeongmal

[Rena] Jiga mwonde utgyeo

Neomu kotdae sen geo ani nabogo pyeongbeomhadanda yae

[Ally] Geu namja wanjeon mame deureonna bwa

[Nayoung] Maldo andwae, maldo andwae

[Ally] Neomu yeppeojigo Sexyhae jyeosseo

Geu namja ttaemuniji

Mureobol ppeon haetdanikka neo bakkun

Hwajangpumi mwonji

[Rena] Sasil na

Cheoeum bwasseo

Sangcheo ibeun yasu gateun gipeun nun

[Ariana] Yaegiman haedo eojil haetdanikka

[Rap Line ] Neo jallasseo jeongmal jallasseo jeongmal

Oh ([SooJi] Here comes trouble!)

Oh~Oh~Eh~Oh ([Star] Hey girl listen)

Oh~Oh~Eh~Oh~

[Ariana] Neo jallatda jeongmal ([Ally] Jallasseo)

Oh

Oh~Oh~Eh~Oh ([Rena] Oh~Oh~Eh~Oh)

Oh~Oh~Eh~Oh~ ([Nayoung] Na–Na–Na–Na–Hey~)

[Ally] Neo jallasseo jeongmal

[SooJi] Ayo stop

Let me put it down another way

[All]I Got A Boy meotjin

I Got A Boy chakhan

I Got A Boy handsome Boy nae mam da gajyeogan

I Got A Boy meotjin

I Got A Boy chakhan

I Got A Boy awesome Boy wanjeon banhaenna bwa

[Ariana] A nae wangjanim~

Eonje i momeul guhareo wa jusil tengayo

[Nayoung] Hayan kkumcheoreom~

Nal pume ana ollyeo naraga jusigetjyo

[Rena] Na kkamjjak

Menbungiya

Geu sarameun nae min nachi gunggeumhadae

Wanjeon mame deureo mot

Igin cheok boyeojwodo gwaenchanheulkka

[Jess] Oh jeoldaero andoeji

[Star] Geuchi? Geuchi?

[Jess] Uri jikil geon jikija

[Star] Matji matji

[SooJi] Geuui mameul modu gajil ttaekkaji igeon jeoldaero ijeobeoriji mallago

[All]Oh

Oh~Oh~Eh~Oh

Oh~Oh~Eh~Oh~

[Nayoung] Bameul saedo mojara da da

[All]Oh

Oh~Oh~Eh~Oh

Oh~Oh~Eh~Oh~

[Nayoung] Uri choego gwansimsa da da

[Ariana] Nae mal deureobwa geu ai neone alji

Jom eorijiman sogeun kkwak chasseo

[Ally] Eotteol ttaen oppacheoreom deumjikhajiman

Aegyoreul buril ttaen neomu yeppeo jukgesseo

[All]Oh

Oh~Oh~Eh~Oh

Oh~Oh~Eh~Oh~

[Jess] Neo michyeosseo, michyeosseo

Oh

Oh~Oh~Eh~Oh

Oh~Oh~Eh~Oh~

[Jess] Neo michyeosseo, michyeosseo

[Ariana] Nan jeongmal hwaga na jukgesseo

Nae namjan nal yeojaro anboneun geol

[Ally] Magyeonhal ttaen eotteokhamyeon naega jokenni

Jilturado nage haebolkka

Soksanghae eotteokhae na ([Jess] Maldo an dwae maldo an dwae)

[Star] Don't stop

Lets bring it back to 1:40

[All]I Got A Boy meotjin

I Got A Boy chakhan

I Got A Boy handsome Boy nae mam da gajyeogan

I Got A Boy meotjin

I Got A Boy chakhan

I Got A Boy awesome Boy wanjeon banhaenna bwa

[Nayoung] Eonjena nae gyeoten

Naepyeoni dwaejugo

Gwi giullyeojuneun

[Rap Line] Neo–oh–oh–oh–oh, Neo–oh–oh–oh–oh

[Star]Nan idaero jigeum haengbokhae jal doel geonikka

[All]I Got A Boy meotjin ([Ally] A nae wangjanim~)

I Got A Boy chakhan

I Got A Boy handsome Boy nae mam da gajyeogan ([Ariana] Eonje i momeul guhareo wa jusil tengayo)

I Got A Boy meotjin ([Ally] Hayan kkumcheoreom~)

I Got A Boy chakhan

I Got A Boy awesome Boy wanjeon banhaenna bwa ([Nayoung] Nal pume ana ollyeo naraga jusigetjyo)

I Got A Boy meotjin (Oh)

I Got A Boy chakhan (Oh~Oh~Eh~Oh)

I Got A Boy handsome Boy nae mam da gajyeogan (Oh~Oh~Eh~Oh~)

I Got A Boy meotjin (Oh)

I Got A Boy chakhan (Oh~Oh~Eh~Oh)

I Got A Boy awesome Boy wanjeon banhaenna bwa (Oh~Oh~Eh~Oh~)

--

Fans were shocked.When they stopped posing,fans started to lose their crap.

ALLKPOP

Star Activity debuted as innocent and sweet girls now strong,awesome girls! 

The girls had just released 'Closer' for Jess,SooJi,and Star because they are in Unpretty Rapstar.Then they made a sudden comeback with 'Ooh Ahh'.Fans were already shocked that Ally,maknae,looks more attractive than ever! Then I Got A Boy happened! Rena showed off her rapping skills and Nayoung also! The vocalist are turning to rappers! 

The girls debuted October 10,2015 and already is killing it with awards! Star Activity also just told fans their official fan name 

Sun Activity or SUN.And official color is blue/orange.

The group went on Running Man that's how quick they get love!

Hwaiting Star Activity!

See also...

Star Activity sister group...

Daylight reveals more teasers...

Say! comeback teaser..

E(Y)E becomes innocent...