IU (Hangul: 아이유) (b. 이지은 / Lee Ji Eun, May 16, 1993) is an award-winning South Korean singer-songwriter and actress signed to 1thek Entertainment (formerly known as LOEN Entertainment). She debuted in 2008 to much acclaim for her vocal ability but did not find mainstream success until 2010 with 잔소리 which became her first number one hit. As of 2014, IU has eleven official #1 singles on Gaon, Korea's national chart, and four #1 singles on Billboard's K-Pop Hot 100. She also charted in the top ten of Gaon's annual singles chart for two consecutive years from 2010-2011. Read more about IU on Last.fm.