Christina Aguilera – 50 pounds
Once known as a skinny pop princess, Christiania Aguilera was an idyllic lady in her glory days. Following the birth of her son, however, a few things changed – one of which was her size and having peaked at 200 pounds. Eventually, Aguilera decided to employ a strict diet as well as a rigid fitness routine that involved yoga, which set her back on track with her weight loss goals. Today, she is 50 pounds lighter and will probably not mortgage her weight on account of mere frivolities.