SISTAR appeared on KBS 2TV's 'Yoo Hee Yeol's Sketchbook' on June 26 to 'Shake It,' shake it real good!

MC Yoo Hee Yeol introduced the group by saying they represented summer, so even before the girls came out, the audience knew it was SISTAR by yelling out their name!

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SISTAR said, "This is our fifth year releasing a summer album and promoting," revealing that from 2010, they always sang a hot summer track. �They continued, "We promote in the summer, but even in the winter, we wear summer outfits on stage."

They also revealed they got their first break in five years, saying they left on a four-night, five-day trip back in the wintertime. �