Labor Day 2015: Say Goodbye To Summer With These Sizzling Celebrity Bikini Bodies [PHOTOS]

It's time to put away the barbecue grill and pack up the swimsuits as summer 2015 comes to an end. But even though it's time to say goodbye on Labor Day weekend, these celebrities are still heating things up. Celebrate the unofficial end of summer with the top 20 celebrity bikini body photos.

Celebs kicked off the season as early as the end June, with Kate Gosselin showing off her slim frame in a mix-matched bikini during her birthday trip to Cancun. Actress Demi Moore also proved that older women and moms can have smoking bodies too and she showed off her age-defying toned body in a tiny black bikini.

Reality stars Draya Michele and Kylie Jenner also showed off their curves this summer in darker-hued swimsuits. Actress Jessica Alba wore her bikini while lounging around on a family vacation and "Orange Is The New Black" breakout star Ruby Rose wore a string bikini top with board shorts to enjoy some water sports. Pop stars Taylor Swift and Miley Cyrus got patriotic with their swimsuits on the Fourth of July, and models like Alessandra Ambrosio and Charlotte McKinney showed off their year-round bikini bodies in white-hot numbers.

Click through the slideshow above and see how these celebrities spent their summers showing off their toned bikini bodies above.