The guessing game for 'The X Factor' continues to pick up speed and now it's the question as to who will host Simon Cowell's talent competition. While nothing is official, sources close to the show reveal it's likely that former Pussycat Dolls lead singer Nicole Scherzinger will be 'The X Factor' host.

According to PEOPLE, Scherzinger will join judges Antonio "L.A." Reid and Cowell himself on the U.S. version of the hit U.K. show, with the third judging slot yet to be filled.

Cowell appeared on Ryan Seacrest's KIIS FM radio show in March and dished about Scherzinger, saying, "I absolutely adore her. She's gorgeous and ruthlessly ambitious."

The former Pussycat Doll appeared on the U.K.'s 'The X Factor' last summer as a guest judge and wowed members of the U.K. show. Fellow judge Louis Walsh praised Scherzinger, saying, "This girl has the X Factor in every way. She was incredibly impressive and ticked every box."