A source tells Perez Hilton,   "Kelly's expecting an engagement ring by late summer and to be wed by year's   end. Sure she wants to look great for Duets, but the driving force behind her   weight loss is the holiday nuptials. Kelly has been eating well and exercising   like crazy because she wants to look good for Brandon, who is Reba McEntire's stepson. She loves to tell him   that when he pops the question she'll be at her ideal weight of 120lbs and ready to shop for wedding dresses."

She's looking great!!!! I love that she went blonde again!