The group RAINBOW's 10th anniversary special single has been released. With the seven members' collaboration posters, we have raised our expectations for a comeback.

RAINBOW posted a came-up poster of their special single "OVER THE RAINBOW" on their official SNS channel at 7 a.m. on Nov. 6, and announced a full-fledged comeback.

The released photos showed RAINBOW members using their team name "Rainbow" as Sparkle. Also notable are the words "2019.11.14" and "Proposed by Rainbow," which confirmed their comeback on Nov. 14.

In particular, the special single is a reminder that RAINBOW members touched on everything from planning to producing content for their comeback. RAINBOW prepared even harder to repay the fans for their enthusiastic support.

"We want to return the great love we've received from fans, and we’ve prepared a hand-made album," RAINBOW said. "We’re also planning to donate all the proceeds from this 10th anniversary project, so please give us lots of attention and love."

On Nov. 14, RAINBOW met fans with their special single "OVER THE RAINBOW," which marks their 10th anniversary.