2 minute arm routine 2 minute weight -lifting Thursday: Friday: 20 sit-ups 10 crunches 30 second plank (go for longer if you can) 20 inner thigh lifts (each leg). Ariana Grande Weight Loss Plan. She shares; only few people know that she had been a victim of hypoglycemia her whole life. Fresh and. American actress and singer Ariana Grande started her professional career on Broadway. Her strong singing prowess made that happen.