49 years of Sports Illustrated swimsuit cover models

(WireImage)
22 of 40

1988, 1987, 1986: Elle Macpherson

2009 pilot: The CW's "Beautiful Life," where she'll play the head of a modeling agency

Where you've seen her before: The Austrailan supermodel's acting credits include a stint on "Friends" and the movies "Sirens" and "Batman & Robin."