K-pop music groups - How Old Today?

1

Ateez

1

NCT U

3

2NE1

3

2PM

3

BtoB_(band)

3

BtoB_4U

3

E'LAST

3

I.O.I

3

ILLIT

3

Kangta & Vanness

3

NCT_(group)

3

NCT_U

3

New_Jeans

3

OH_MY_GIRL

3

Stray_Kids