Rainbow’s cheerleading outfits for “Sunshine” performances are currently becoming a hot issue online due its changing numbers.

Since the release of their new album ‘Rainbow Syndrome- Part 2’ on June 4, Rainbow has been actively performing “Sunshine” on KBS ‘Music Bank’, MBC ‘Show! Music Core’ and SBS ‘Inkigayo’. For their performances, the members appeared in costumes with different numbers.

Rainbow wore cheerleading outfits with the numbers 7 on ‘Music Bank’ and number 11 on ‘Show! Music Core’, evoking curiousity among the viewers. The secret about the numbers was revealed during June 9th broadcast of ‘Inkigayo’ where they wore number 5.

It was found out that the numbers represented the numbers of each channels-- KBS, MBC and SBS in Seoul.