Ashlee Simpson shows off pregnant belly, frequents ballet-inspired fitness class

LOS ANGELES, May 20 (UPI) -- Ashlee Simpson Ross' noticeably pregnant belly won't keep her from breaking a sweat; luckily she's exercising smart.

The actress and singer was spotted leaving a low-impact fitness class at Cardio Barre, a center specializing in ballet-inspired workouts. She donned black tights, a matching tank and a healthy glow as she departed.

"Ashlee is a beautifully classical trained dancer. Hence her passion for Cardio Barre," establishment founder, Richard Giorla, told E! News. "The dance inspired ballet techniques are no impact/high energy so they are safe to do while pregnant."

The star frequents Cardio Barre at least twice a week.

Simpson and her hubby, singer Evan Ross, are expecting to welcome a girl into their family in the coming months; her son Bronx, 6, is especially excited to be a big brother, she said. The 30-year-old star recently posted an Instagram photo promoting Ross' singing career and newest song release, "How To Live Alone."