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The Hangover Part III star Justin Bartha is engaged, according to People.

The 34-year-old actor is reportedly set to marry personal trainer Lia Smith. The couple's relationship first became public on New Year's Day when they were snapped lounging on a beach in Hawaii.

Bartha, who also stars in NBC's The New Normal, has previously been linked to Scarlett Johansson and Ashley Olsen.

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