Throwback Thursday: Heidi Klum

Heidi (with Will Ferrell) as dancing queen :: Andrew Macpherson for SI

Heidi as doting matriarch and/or "cool mom" :: John Parra/Getty

Heidi as purveyor of the polished bed-head look :: Stewart Shining/SI

Heidi as real-life sea nymph :: Robert Erdmann/SI

Heidi as the reality hostess with the mostess :: Carlo Allegri/Reuters

Heidi as cover model :: Robert Erdmann/SI

Heidi (with NFL safety John Lynch) as Barry Sanders impersonator :: Walter Iooss Jr./SI

Heidi (with Nick Cannon at the Kids' Choice Awards) as good sport :: Mario Anzuoni/Reuters

Heidi as Emmy winner :: Jonathan Alcorn/Reuters

Heidi as Athena, Goddess of Battle :: James Porto for SI

Heidi as 1940s pinup girl :: Joanne Gair

Heidi as friend to all living creatures :: Robert Erdmann/SI

Heidi as Heidi :: Stewart Shining/SI