Christina Applegate stopped by The Tonight Show, and Jay Leno had a surprise in store for the actress. He dug up a commercial she did for Purina Cat Chow in 1983. Christina was just 12-years-old when she shot the ad, in which she bragged about her cat s health. After Jay played the commercial, Christina mocked her acting. Jay told Christina she hasn t aged at all since shooting the spot.
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