Meghan Trainor is still maintaining her fitness in the final trimester of her pregnancy! The gorgeous “All About That Bass” singer, 27, was featured in a workout video courtesy of her personal trainer Rebecca Broxterman, who captured Meghan doing intense weight-lifting workouts during their February 1 session. In the video compilation, Meghan looked incredibly focused while doing squats with a resistance band just above her knees and weights in her hands.