Exclusive: Victoria's Secret Hopefuls Battle it Out in Boot Camp

Only ET was with Victoria's Secret model Alessandra Ambrosio on Thursday in New York, where two Angel hopefuls were put to the test as they vied for a coveted spot on the sexiest catwalk -- and Heidi Klum brought us along as she got ready to host the big show!

Kylie Bisutti and Jamie Lee Darley stepped into model mayhem for a chance to live out their runway dreams. You can weigh in on the competition by visiting VSAllAccess.com on November 23 to watch Kylie and Jamie's boot camp No. 3 episode, and cast your vote for your favorite!

Watch the video to hear Alessandra size them up, and get your backstage look at host Heidi's last-minute preparations.