Reality TV star Audrina Patridge is celebrating a BIG ONE today … It’s her 40th birthday, and in honor of another year around the sun, we’re splashin’ her hot shots onto your laps …

Cruisin’ through the Hollywood Hills since the mid-2000s, Audrina rose to fame on MTV’s reality show, “The Hills” … and continues to bring the heat to Hollywood with her stunning looks!

Looking gorgeous in a bikini top, the hot mama loves a good sunglasses selfie … Try hard to keep your eyes on the sunnies 😎!

And, she’s always down for an adventure … Check out this dope underwater photo of her snorkeling on vacay.

Show this birthday babe some love and give her hot shots a well-earned scroll!