"American Idol" beauty Kristy Lee Cook is off the market.

Cook, 24, who was voted off the show Wednesday night, announced her engagement to Andrew Dobner, 25, on "American Idol Extra."

"We kept it on the down-low because I didn’t want to have to deal with that kind of stress from everything. I just wanted to focus on 'American Idol," the Oregon native said in response to an Us Weekly question during a press conference Thursday.

"The ring that he got me has got a marquise cut on it and has quite a few diamonds on it," Cook said. "We picked it out together a long time ago." The two haven't set a date yet, she said, but are aiming for "next June."

Cook also told "American Idol Extra" she's OK with leaving the show.

"I’ve made it past top 10 which was my goal and I’m going home to go ride my horse now," she said.