Hot Shots: Is Audrina Running Off To Join The Circus?

Nope, she's not auditioning for Cirque du Soleil. In fact, Audrina Patridge is barely even breaking a sweat despite lifting herself off the ground with a little help from Reebok's trapeze-y new invention. Peep these pix of the Hills cutie in her workout gear and watch as she shows us how fun/easy cardio can be. Especially when you've got a hot personal trainer by your side ...