Hint: It's nothing fancy.
Straight from the (very toned) horse's mouth.
Rihanna, Chrissy Teigen, Ciara, Olivia Culpo, and more.
Kate Hudson singing Prince will blow you away.
Yes, he's younger than she is.
Yep, 2016's going to be ALL about this.
Take a page from this star's healthy routine.
Four different ways.
Happy Labor Day!