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USA TODAY - She's got the baby. And now she's got the bling.

Hugh Hefner's ex, Playboy model Holly Madison, 33, says in a blog post, "I'm officially engaged!"

More: Tara Reid parties poolside with new boyfriend

The new mom, who delivered daughter Rainbow three months ago, says her sweetie, event planner Pasquale Rotella, made it a very romantic event when he popped the question on Sunday.

"He proposed to me at the top of the Ferris wheel at EDC (Electric Daisy Carnival) Las Vegas. I was so happy that so many of our close friends were there to share the wonderful moment with us! We rode around the festival on the art car until the sun came up! I couldn't have asked for a more wonderful or magical proposal!"