Duble Sidekick is a South Korean music producer and songwriting duo consisting of lyricist Park Jang-geun and composer Mikey. The duo was formed in 2010, and rose to fame after producing MBLAQ's 2012 EP 100% Ver. Since then, they have produced many hit songs. From 2011 to 2013, the pair also produced songs under the mantle of 우리형과 내동생, reserved for music with a softer and sweeter atmosphere. In late 2012, they expanded their team to include more composers and started their own entertainment agency called Duble Kick Entertainment. Wellmade Yedang became the agency's largest shareholder in May 2014.