Fitness fads come and go but some of them including flywheel and trampoline workouts are here to stay. Eonline.com shares a list of fitness fads that the stars plan on using in 2014: * Aerial fitness: Being suspended from their air is also a way to stay fit too. Aerial fitness classes will still be a huge trend for 2014 especially aerial yoga like AntiGravity Fitness which is loved by celebrities like Gwyneth Paltrow and has been used on tour by singers Mariah Carey Britney Spears and Pink. Practitioners use silk hammocks to to improve blood flow and stretch their