Billie Eilish is celebrating 24 years around the sun today, and we have about as many sexy pics to help celebrate her big day!

From sleepwear to swimwear, who could sleep on this Grammy-winning buxom babe as she floods timelines with tantalizing shots?!

Teasing fans with a peek at her right thigh, the “Bad Guy” singer sizzled in this white lace number.

And always finding the most heavenly angle, Billie delighted fans with a shot of her floating in shallow water, wearing a black bikini for a twilight swim.

Check out the gallery for more spicy shots.