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Ryan Seacrest turns 38 on Dec. 24, 2012. The television host, radio personality and network producer is known for hosting the hit talent program 'American Idol,' hosting his radio show 'On Air with Ryan Seacrest' and for hosting 'E! News.' Seacrest is also the boyfriend of rising star Julianne Hough.
Pictured: 'American Idol' host Ryan Seacrest appears in an undated promotional photo.
(Photo courtesy of FOX / Michael Becker)