Mischa Barton is reportedly set to marry musician Cisco Adler in a swanky wedding in February.The sexy 19-year-old 'OC' star is said to have booked Los Angeles' trendy Roosevelt Hotel for the nuptials, just a month after 26-year-old Cisco's proposal.Mischa and Cisco - who was once engaged to Kimberly Stewart - got engaged in November when the Whitestarr singer got down on one knee in Hawaii.He popped the question while presenting her with a giant bunch of tropical flowers, according to Britain's Daily Star newspaper. Mischa happily accepted.Meanwhile, the blonde beauty recently confessed she was told to have sex with Leonardo DiCaprio to boost her career - but didn't because he was too old.Mischa claims she was urged by her publicist, Craig Schneider, to bed the Hollywood heartthrob to give her more publicity.She claims when she and Craig spotted the 'Titanic' star at a photoshoot, he turned to her and said: "For the sake of your career, go and sleep with that man"

But the sexy star said she was put off dating DiCaprio because he is ten years older than her, adding: "Isn't Leo like, 30, or something?"

Tagged in