Britney Spears is enjoying some downtime from "The X Factor" in Hawaii -- and looking good doing it!

The singer just shared a personal photo from inside her hotel in Maui moments ago, looking great in a purple bikini while posing with adorable sons Jayden James and Sean Preston.

"Getting ready for some pool time! Having a blast," the singer posted along with the pic ... the second one she's shared from her vacation so far.

Yesterday Spears posted a family photo of her with fiance Jason Trawick and the boys as well, writing "Happy 4th of July from the Aloha State!!"


Check out how Britney's beach bod compares to some other famous mamas in the gallery above!