Lionel Richie has revealed he is "scared to death" that his daughter, Sofia Richie, is dating Keeping Up With The Kardashians star Scott Disick.

The award-winning musician was speaking at the auditions for American Idol in New York and was not happy when he was asked about his 19-year-old daughter's romance with 34-year-old Disick.

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The Hello singer told US Weekly that he was "in shock" and "scared to death" by their relationship.

"Have I been in shock?! I'm the dad, come on. I’m scared to death, are you kidding me?"

Richie's model daughter began dating Disick in September, confirming their couple status with a picture on Instagram.

Scott Disick with Kourtney Kardashian

Disick, who calls himself Lord Disick, was previously in a long-term relationship with Kourtney Kardashian, with who he has three kids, Mason, 7, Penelope, 5, and Reign, 2.