Since there are not much news of Rainbow to share,i will share some photos of the girls practicing instead.

Some photos were taken when the girls were practicing for "Not Your Girl",the sweaters they wear in the photo make their names more relevant,the girls are exactly wearing the colour of Rainbow,each person each colour.

I think they are pretty confident on stage already,they just need to improve their pronunciation a bit,then they will go further.

Photos credits to Sportchosun
Reuploaded by Kacey @ Daily K Pop News