With lots of parties and celebrations coming up, you're bound to need a few head-turning dresses this season. If you're currently on the lookout for new options, we found some sexy designs that will make you feel confident and beautiful. It might be surprising, but all of these choices are from Amazon for under $22. The huge online retailer offers a variety of dresses that fit different needs. So whether you want something sparkly and glam or black and simple, we've got you covered. Take a look at these hot picks.