There’s only one thing thing that would make a celebrity get down on the ground (carpet or otherwise) in a slinky white dress, and that’s a Hollywood Walk of Fame star. Christina Aguilera bagged some prime real estate while getting her’s yesterday. It’s right in front of the Hard Rock Cafe. She went all out for the occasion busting out a Dior dress, Neil Lane jewelry and purr-fect leopard print Christian Louboutin heels, and gushed, “I’m looking forward the moving coming out and this whole next chapter in my life, and I really couldn’t be more excited.” Jordan Bratman, who? Div...