Justin Bartha & Lia Smith: Breakfast After Engagement!

Justin Bartha and new fiance Lia Smith step out for breakfast together with his pet pooch on Sunday (May 19) in Los Angeles.

The 34-year-old Hangover actor’s fiance showed off her sparkling diamond engagement ring while walking the cute dog.

PHOTOS: Check out the latest pics of Justin Bartha

It was recently announced that Justin and Lia became engaged after he popped the question during a vacation at Post Ranch Inn in Big Sur.

In case you forgot, Justin‘s upcoming film The Hangover Part III is hitting theaters on Thursday (May 30)!