Simon Cowell has taken a swipe at Ryan Seacrest by claiming the ex- American Idol judge "always wanted to be famous," RadarOnline.com can reveal.

The music mogul, 66, opened up about his fractured relationship with his former co-star, 50, while promoting his new Netflix series. Article continues below advertisement

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He threw shade on his former colleague when he was asked if he was "mystified" by Seacrest's success, and then laughed, trying to explain it.

"I can't really answer that one if I'm being honest with you. He does work hard," Cowell said. "I don't know, actually. He was very, very ambitious. And look, I don't follow his career if I'm being hones

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