Christina Aguilera loves her new curves. “The Voice” judge squeezed her assets into a skin-tight purple dress at the American Music Award nominations press conference in Los Angeles.(View the pictures here.)Aguilera also sported bleach blond, purple and pink tresses to go along with her dress. As the photographers snapped away, she flaunted her butt and hips as she smiled for the cameras.Aguilera has certainly been showing off a fuller figure than she did in her “Dirrty” days, but she seems more than happy about it.“I've been criticized for being on both sides of the scale. It's noise I block out automatically. I love my body. My boyfriend loooves my body. My son [4-year-old Max] is healthy and happy, so that's all that matters to me,” she said in an interview with Marie Claire magazine earlier this year.Meanwhile, according to the Daily Mail, artists Nicki Minaj and Rihanna lead the nominations, as they each are up for four awards. Rihanna is nominated for the top category, Artist of the Year. Earlier this year, Rihanna won the night’s most coveted award for Video of the Year at the MTV Video Music Awards. Rihanna has been making headlines after apparently being the reason behind her ex Chris Brown breaking up with his girlfriend of nearly two years, Karrueche Tran."I don't want to see her hurt over my friendship with Rihanna,” Chris Brown said, according to TMZ.“I have decided to be single to focus on my career. I love Karrueche very much but I don't want to see her hurt over my friendship with Rihanna. I'd rather be single, allowing us to both be happy in our lives,” Brown added.