Britney Spears is celebrating her 40th birthday in style!

The pop star turned 40 on Thursday, and marked the occasion with a festive getaway to Cabo San Lucas, Mexico with fiancé Sam Asghari.

"I'm so blessed and grateful !!!! Tears of joy today," Spears wrote on Instagram, adding a crying emoji. "Thank you for all the b-day wishes 🥳🎂🎈🎉 !!!! Psss I didn't even drink the champagne 🥂 no lie !!!!"