Hayden Panettiere: Bikini Babe for Labor Day Weekend!

Hayden Panettiere shows off her amazing bikini body while enjoying some fun in the sun with friends on Sunday (September 1) in Miami, Fla.

The 24-year-old actress enjoyed her Labor Day weekend with a dip in the ocean and happily waved at photographers.

PHOTOS: Check out the latest pics of Hayden Panettiere

“Absolutely heartbroken! 60+ bottlenose dolphins awaiting their fate in Taiji’s killing cove. #tweet4taiji Follow @whaleman1 for updates,” Hayden tweeted that morning.

The second season of Hayden‘s hit ABC show Nashville will be premiering on Wednesday, September 25 at 10/9c! Can’t wait to see what happens!

15+ pictures inside of Hayden Panettiere showing off her bikini body…