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Lee Seung-gi (; born January 13, 1987) is a South Korean singer, actor, host and entertainer. He has garnered further recognition as an actor with leading roles in popular dramas such as "Brilliant Legacy" (2009), "My Girlfriend Is a Nine-Tailed Fox" (2010), "The King 2 Hearts" (2012), "Gu Family Book" (2013), "You're All Surrounded" (2014), and "A Korean Odyssey" (2017–2018). He was a member of the first season of weekend variety show "1 Night 2 Days" from November 2007 to February 2012, and the host of talk show "Strong Heart" from October 2009 to April 2012.

2007