T-ara
T-ara made their second extended play (or EP) in June 2011. The title is John Travolta Wannabe. It made it to number three on the Gaon Album Chart. The EP's single, "Roly-Poly", made it to number two on the Gaon Digital Chart and number one on the Korea K-Pop Hot 100 chart. It became the highest-selling song of 2011 in South Korea. "Roly-Poly" won the award of Best Music Video at the 3rd Melon Music Awards. T-ara also won Singer of the Year at the 1st Gaon Chart Awards. They were also nominated for Best Dance Performance by a Female Group and Song of the Year at the 13th Mnet Asian Music Awards.