i wasn't really into kpop then so idk.
i know wonder girls were #1 in 2007 and 2008 and then got shipped off to the us and never really came back the same. snsd had gee in 2009 and got the #1 spot. how long were they #1?
people talk about how after awhile other groups took over digitally, like 2ne1, sistar, t-ara, etc. and twice became the #1 girl group in 2016.
so was snsd considered the top girl group from 2009 all the way until 2015?