Though MTV's House Of Styles may have featured compelling behind-the-scenes stories about models, nothing was more compelling than the beauty of former host Molly Sims. She was also a former CoverGirl model, and, in 2006, she appeared in a SI: Swimsuit Edition photo donning a $30 million bikini made of diamonds. In our opinion, the diamonds were a bit of an excess...and so was the bikini. Just saying.