Three K-pop Girl Groups Chosen as Billboard's '100 Greatest Girl Group Songs'

Billboard chose three K-pop girl groups' songs as 100 Greatest Girl Group Songs of All Time Critics' Picks. 
On July 7th, Billboard released list of '100 Greatest Girl Group Songs of All Time'.On the list, three K-pop girl groups—Girls' Generation, f(x), Red Velvet songs were in it.Three songs include Girls' Generation's 'I Got A Boy', f(x)'s 'Rum Pum Pum Pum', Red Velvet's 'Dumb Dumb'.Girls' Generation's 'I Got A Boy' ranked 21st, while f(x)'s 'Rum Pum Pum Pum' and Red Velvet's 'Dumb Dumb' ranked 42nd and 70th in order.
 
(Credit = 'Billboard' Website) 

(SBS Star)