Try these workout moves straight from their trainers.
Emma Roberts - Triceps
A. Stand with feet shoulder-width apart, holding a 2-lb dumbbell in each hand. Bring your right arm up and bend it at a right angle.
B. Engange your abs and twist your body to the left, while extending your right elbow in front of you (as if you're throwing a snowball). Then bring in your elbow and twist back to starting position. Repeat for 15 reps; switch sides. Rest for 30 seconds, then do 2 more sets.
Tones: This Tricep Extension move will give you strong arms!
Trainer: Monib Abhat used this workout to whip Emma into shape!