Nicole Scherzinger headed to the beautiful island of Mykonos to celebrate her 44th birthday. Dressed in a tropical bikini that showed off her eye-popping curves, the singer took to Instagram to express her gratitude and to say her "heart is full" from all the love.
Read on to learn about the activities that help her stay in shape, as well as the photographs that prove they work—and don't forget to check out the 30 Top Celebrity Swimsuit Moments to become beach-ready too!