The Sports Illustrated Swimsuit Issue is an issue published annually by Sports Illustrated magazine which features models in swimsuits. It was first published in 1964. Through the years famous models such as Cheryl Tiegs, Christie Brinkley, Paulina Porizkova, Elle Macpherson, Rachel Hunter, Tyra Banks and Heidi Klum have been featured on the cover. Other famous models who appeared within its pages, but not on its cover, include Stacey Williams and Valeria Mazza.