In 2011 and 2012, T-ara continued to have popular releases. These included the number-one singles "Cry Cry", "Were In Love" (), and "Lovey-Dovey". The last of these was the second highest-selling digital single of 2012 in South Korea. It had over 3.7 million digital units sold. T-ara released their first Japanese language album in 2012. It is called "Jewelry Box". It made it to number two on the Oricon chart. Its lead single, the Japanese language version of "Bo Peep Bo Peep", made number one on the Oricon chart and the Japan Hot 100. It sold more than 100,000 units in Japan. A month later, T-ara returned to Korean language music with songs "Day by Day" and "Mirage". The songs "Day by Day" and "Sexy Love" made it to the top ten of the Gaon Digital Chart. They were among the top 100 best-selling singles in South Korea in 2012.