with 12,136 copies sold. This was their first large effort to make into Japanese music market. Prior to their debut in Japan, they took 6 months to study Japanese language started from September 2010. They mastered Japanese in a short time and improved their Japanese from time to time. Now they can converse in Japanese very well. Uniquely, they made new songs for Japanese debut instead of using their translated Korean songs as their Japanese songs like other groups did. It is original, new and fresh Japanese songs made specially for their Japanese debut. Love Bingo On June 15, 2011, The Boss released their second Japanese single, titled "Love Bingo!. "The 'Premium Live & Bingo Event' in Shibuya-AX Tokyo was performed on 21 May 2011. The members gave their valuable things to the five lucky fans. Love Bingo ranked at #12 on CD TV’s Domestic Charts 2011. The ‘Love Bingo!’ Live & Love Exchange Event took place from 15 June 2011 until 19 June 2011 at Fukuoka, Sapporo, Hyogo, Tokyo and Nagoya. Love Parade On September 21, 2011, The Boss released their third Japanese single, titled "Love Parade", originally intended as the last of their "Love Series." The single peaks at number 8 on its first week on Oricon Weekly Charts and also the one of their best singles with over 18,000 copies sold on their first week. Love Parade also made it to the Oricon Monthly Charts, ranked 26th spot. The Boss also managed to gather 30,000 fans for their Love Parade event held in Sapporo, Fukuoka, Nagoya, Osaka, and Kanagawa. 2nd Korean single-Lady In September 2011, after almost one year in Japan, The Boss came back to Korea to promote their new second single album, Lady. The single contains two songs, Lady and Calling You as well as one instrumental song.It's for the first time to use a ballad song as their title song. They showed a perfect performance with a fantastic harmony during their comeback on SBS Inkigayo on 30 October 2011, and were exalted with compliments. Additionally, the “tiger like” voice of the member Hyunmin was a commented subject and received a lot of interest. On 30 October 2011, they release Lady Live version video on YouTube. It overtook Girls' Generation's "The Boys" for the 2nd spot of Korean sales in Japan at that time. They wrapped up their Lady promotions on 19 November 2011 at