Their song "Sun" is pretty catchy and the girls go for a bubbly image for their debut,i have always been a fan for all kpop female groups and i think most of you know that,it's sad to see fans disliking their teaser on Youtube.
I think fans should give them a chance,listen to the full song and watch the full MV first at least before giving negative response.
Anyway,enjoy the teaser here!
Video source:Popseouleris2