Leaving the kids at home (with the bodyguard/boyfriend we’re guessing?) Heidi Klum made her first major red-carpet appearance without her soon-to-be ex-husband Seal.

Sad day for Seal-Klum enthusiasts.

Or as Giuliana Rancic put it, “sometimes when somebody has big breakout, they go all va-va-va-voom on the red carpet.”

Heidi looked fabulous (and towered over Ryan Seacrest) in a seafoam Alexander Voltaire gown with devastating leg slits. Heidi always rocks the lesser-known designers as opposed to going with a red-carpet standard like Marchesa or Monique Lhuillier.

Alexander Voltaire is a designer out of France and Rihanna is also a huge fan.