The Schmigadoon! star, who won the Oscar for best supporting actress for West Side Story, was 18 when she competed on Season 6 of the Fox reality competition in 2009. She was eliminated early. "Ariana just won the Oscar. Season 6 of SYTYCD. I’m so proud of her," tweeted SYTYCD co-creator Nigel Lythgoe. DeBose isn't the first Oscar winner with a reality TV past. The New Partridge Family Emma Stone won Best Actress in 2017.