The 2014 Sports Illustrated Swimsuit Issue [1] was released last week, revealing Chrissy Teigen, Nina Agdal, and Lily Aldridge as the cover stars for the special 50th-anniversary edition. There have been many sexy stars to grace the cover [2] over the years and even more racy shots inside the publication. We've rounded up some of our favorite bikini moments from this year's pages (there are even more right here [3]!), including hot models Chanel Iman, Irina Shayk, and more posing under the sun.