Kelly Clarkson

Kelly Brianne Clarkson (born April 24, 1982) is an American singer, songwriter and occasional actress. Born in Fort Worth and raised in Burleson, Texas, Clarkson came into prominence after becoming the winner of the inaugural season of the television seriesAmerican Idol in 2002 and later becoming the runner-up in the television special World Idolin 2003.

PSY

Park Jae-sang (Korean: 박재상, 朴載相; born December 31, 1977), better known by his stage name PSY (Korean: 싸이, IPA: [s͈ai]; English: /ˈsaɪ/ SY), is a South Korean singer, songwriter, rapper, dancer, and record producer. He is well known for his humorous videos and stage performances, and for his hit single "Gangnam Style". PSY has appeared on numerous television programs, including The Ellen DeGeneres Show, Extra, Good Sunday: X-Man, The Golden Fishery, The Today Show, Saturday Night Live, Sunrise, and The X-Factor.  On October 23, 2012, PSY met U.N. Secretary General Ban Ki-moon at the United Nations Headquarters where Ban expressed his desire to work with PSY. He remarked that PSY has an "unlimited global reach" and commented "I hope that we can work together using your global reach".