Love is in the air! 

Wilmer Valderrama took to Instagram on Thursday to share a sweet birthday tribute to girlfriend Demi Lovato, who turned 23.  

The "That '70s Show" alum posted a pic of the two out to dinner, where the "Cool For The Summer" singer looked cute and casual while sporting minimal makeup. Wilmer matched his lady love for the low-key celebration, wearing a ball cap and a black sweater. 

"Well little angel, another cumpleaños.. You inspire millions, and I'm one of them," he captioned the shot. "Your smile keeps getting bigger and bigger with every birthday that comes by! I'm blessed to see it shine... 23, You totally look it, werk! I love you AND #YonceSoHardMoaf**kasWannaFineMe." 

It definitely looks like Demi had a great 23rd birthday -- she also shared a picture of her adorable new puppy, Batman! 


"Ummm... guys.... meet Batman.....," she posted with a shot of her teeny, tiny black pup. 

Lovato tragically lost her dog, Buddy, in July after he was attacked by a coyote who wandered into her backyard. Hopefully the "Skyscrapers" singer has gotten some new fencing to keep little Batman safe. 

We can't get enough of Demi and Wilmer together -- what do you think about the actor's sweet birthday tribute? Sound off below and check out the galleries above to see more hot Hollywood couples and celeb pups! 

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