Miley Cyrus and Happy Take the Town

Miley Cyrus with dog Happy

Courtesy Miley Cyrus

updated 05/09/2012 AT 12:00 PM ET

originally published 05/10/2012 AT 9:00 AM ET

Miley Cyrus can’t get enough Happy!

The LOL star has been maximizing her getting-to-know-you time with her new rescue puppy – and it looks like they’re having a blast.

“Happy seis de mayo,” she Tweeted on Sunday, the day after Cinco de Mayo, sharing a photo of her and Happy wearing mini sombreros.

Since joining Cyrus and her three other dogs – Lila, Floyd and Ziggy – Happy has been getting lots of affection from his new family. It’s a serious improvement from the Rottweiler-beagle mix’s very-recent past, when he was abandoned in front of a Walmart store.

“Lovvveeee him,” Cyrus wrote of Happy on Monday, and from the look in her eyes, she meant it.

Miley Cyrus with dog Happy

Courtesy Miley Cyrus

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