American Idol Weight Loss Transformations: These 4 Stars Have Lost Over 260 Pounds Total! (PHOTOS)

American Idol Season 3 finalist Jennifer Hudson lost even more weight than Jordin Sparks! Her 80-pound weight loss brought her down from a size 16 to a size 6 since giving birth to her son in August 2009. She credits her slim-down to Weight Watchers (she became a spokesperson in 2012) and celebrity trainer Harley Pasternak. In Redbook's December 2012 issue she admitted, "I’m getting used to my new self more than anything else. I got used to being plus-sized and knowing how to be that, whereas this is like, 'Okay, who am I?''" Hudson even wrote a book, I Got This: How I Changed My Ways and Lost What Weighed Me Down, about her weight loss journey with that was released in January 2012. (Pictured in 2009 at left and in 2012 at right.)