Heidi Klum, the star TV show host

The three main judges, Thomas Hayo (left) with Heidi Klum (center) and Michael Michalsky (right), will determine the fate of Germany's Next Topmodel on ProSieben on May 24. While Klum serves as the starring central figure of the reality TV show that's been running since 2006, this year's aspiring models have been divided into two camps competing against each other: Team Thomas and Team Michael.

The contestants on GNTM go through a series of photo shoots every week, with Klum providing direction on set. The themes vary each week, and Klum, Hayo and Michalsky use the photos from these shoots to determine whether the prospective models stay or go. Pop icon Madonna inspired the look for this shoot with Sally (left) from Remscheid.

As part of their performance, all models at the end of each episode of GNTM walk the runway in front of the judges. There is often an additional guest judge on the panel, like star designer Wolfgang Joop (second from right). For this particular walk, sprinklers covered the runway with water, making it difficult for the models to keep balance; Klum and Michalsky required umbrellas.

During the semi-finale of GNTM, Klum (third from right) brought the contestants to the middle of a California desert for their photo shoot. The remaining models (from left to right) Toni, Julianna, Jennifer, Pia and Christina have varying levels of confidence and worries. "I just want to be super good today. It's a single fight and I want to come out on top here," said Christina, 21.

Klum and the GNTM creators develop a wide variety of concepts for the photo shoots. One week, the top model candidates' looks were inspired by cartoon icons Mickey and Minnie Mouse, with Minnie's signature polka dots or Mickey's bright red pants. Klum invited the original characters to join them: "A longtime dream of mine is finally coming true. Mickey and Minnie Mouse are our guests this week!"

Katelyn Pankoke, one of the fashion design contestants on the 12th season of Project Runway, hangs out with Heidi Klum during the eighth challenge in the atelier studio. Klum serves as one of four judges on the show since its debut in December of 2004, before the beginning of Germany's Next Topmodel. Klum has been known for her friendliness and constructive, yet direct criticism.

The contestants on Project Runway compete against each other and try to make the best garment for the weekly challenge. Each candidate must have good sewing and construction skills in addition to their design talent. Guest judge Shiri Appleby (back, right), Nina Garcia (back, left), Zac Posen and Heidi Klum visit the sewing room during the 11th challenge of Project Runway, season 15.

Project Runway was one of Klum's first starring roles on TV. The series has been nominated year after year for an Emmy Award for Outstanding Reality-Competition Program. From left to right, guest judge Kerry Washington, Nina Garcia, Zac Posen and Heidi Klum judge the final challenge of Project Runway season 12.