Looking good!

Jonah Hill stepped out in LA on Monday looking much thinner than he has in recent months, and we can't help but wonder what the actor's motivation was to get in shape this time.

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The 32-year-old, who was accompanied on the outing by his girlfriend Camille, famously lost a significant amount of weight in 2011, saying the decision to slim down was an act of "maturity" in his life.

Interested to see how the Oscar nominee's body has transformed over the years? Check out the gallery below!