Which guest judge on Under the Gunn appeared on the cover of "Sports Illustrated Swimsuit Issue"
Under the Gunn:  Guest judges included: Heidi Klum, Neil Patrick Harris, Macklemore, Jaimie Alexander, Zoey Deutch, Zendaya, Georgina Chapman, Sarah Hyland, Trina Turk, and Wendy Partridge. Heidi Klum:  She appeared on the cover of the "Sports Illustrated Swimsuit Issue" and in 1999 became the first German model to become a Victoria's Secret Angel.
Heidi Klum