Roly-Poly

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"Roly-Poly" is a song by South Korean girl group T-ara. It was taken from their second mini album John Travolta Wannabe which was released on 29 June 2011. The song was written and produced by Shinsadong Tiger and Choi Kyu-sung, who were also behind the group's 2009 song "Bo Peep Bo Peep". "Roly-Poly" won three weekly music program awards on M Countdown and Inkigayo. Only a month after release, the song accumulated over US$2.3 million in digital sales with over $280,000 per day. Despite peaking at number two on the Gaon Digital Chart, it went on to become the best-selling song of 2011 in South Korea with over 4,000,000 digital downloads, the highest figure for a K-pop girl group single on Gaon in the 2010s. The song was re-released in Japanese on 29 February 2012 as the third single from T-ara's first Japanese album, Jewelry Box.