Jedward

John and Edward Grimes (born 16 October 1991 in Dublin, Ireland), known professionally as Jedward, are an Irish singing and television presenting duo. They are identical twins and first appeared as John & Edward in the sixth series of The X Factor in 2009, generating a phenomenon of ironic popularity described as "the Jedward paradox". They finished sixth and are now managed by Louis Walsh, who was their mentor during The X Factor.

source: Wikipedia