Miley Cyrus isn't stuffing her face with Pringles on the couch. The 28-year-old singer was yesterday spotted keeping her super-fit body in shape with the simplest form of exercise there is. Steering clear of fancy equipment or expensive trainers, the "Plastic Hearts" singer was photographed hiking around L.A. on Friday, with photos showing the blonde flaunting her gym-honed body in tight yoga pants. Miley, who has made 2021 headlines for her killer home yoga sessions, was seemingly up for the fresh air. Check it out below.