Top 3 in Top 11 best songs by girl group T-ara.
T-ARA(티아라) _ Roly Poly(롤리폴리) .
Roly Poly is a dance-pop song with a playful melody. The song was composed and produced by Shinsadong Tiger and Choi Gyu-Sung. Is the main theme song of the group's second mini album called John Travolta Wannabe (2011). Roly-Poly won #1 on Mnet M!Countdown and SBS Inkigayo. Stayed at #2 for 5 weeks on Music Bank. This is considered the biggest hit of the group, when it reached a record of more than 2 million sales and more than 4.6 million downloads. Became the most downloaded song of 2011, according to Gaon statistics. Roly-Poly was also made into a musical with the members of the group. The song is available in both Korean and Japanese versions.