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/ Source: TODAY
By Randee Dawn

Miley Cyrus knows how to get her goofball on. And that makes her fiancé Liam Hemsworth one lucky guy!

"The Voice" coach and musician, 24, posted a delightfully silly photo of the pair mugging for the camera in honor of his 27th birthday on Friday and included an equally sweet message:

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The pair have been on-again-off-again since 2009, when they met while filming "The Last Song." They were engaged in 2012, broke it off in 2013, and Cyrus confirmed their re-engagement last October.

Hemsworth may have been a tiny bit less effusive when he posted this picture of Cyrus giving him a smooch two weeks ago:

But they both clearly are happy to celebrate birthdays on Instagram, including the birthday celebrated on Christmas:

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Yep, clearly these two are meant to be. Happy birthday, Liam!

Follow Randee Dawn on Twitter.