Rainbow members turned into cheerleaders for a performance of "Sunshine."

On June 13, Rainbow appeared on M-Countdown in red tops and white skirts that resemble cheerleading uniforms. Performing their title song, "Sunshine," the members of Rainbow filled the stage with cute choreography and stage manners including winks and blowing kisses.

"Sunshine" is a upbeat, happy song that describes the mind of a girl who has just fallen in love. With catchy, repeating lines and addicting melodies, the song seeks to be a hit for the summer.

Other performers on M-Countdown included Shinhwa, SISTAR, MBLAQ, After School, Ivy, 2PM, EXO, Huh Gak and A-Pink's Eunji, Nell, Henry, VIXX,100%, Bumkey, BTS, etc.