Get ready to work your abs, legs, and butt with this toning and sculpting workout from Selena Gomez's trainer Amy Rosoff Davis. The workout mixes Pilates, dance, and yoga to create long, lean muscles. If you're new to working out, you can still do this 30-minute sculpting session as Amy provides helpful modifications, one being that you can use a chair for balance while pulsing your leg in arabesque. Yep, Amy has a strong dance background, so there will be a few ballet positions in the workout. Press play and channel your inner ballerina like her clients Kristen Bell, Taylor Schilling, and Emma Roberts do.