From Tom Cruise to Heidi Klum, see which celebrities have been covered in green goo at the annual Nickelodeon awards show
Sandra Bullock and Neil Patrick Harris
Partners in slime! The Gravity star and the How I Met Your Mother actor jokingly tried to conjure a "slime-free zone" when they took the stage at the Galen Center on March 23, 2013, to present the Favorite Movie Actress award to Twilight's Kristen Stewart — but as they stood at the podium, a geyser of green goo erupted in front of them, covering them both in slime.
Credit: Jeff Kravitz/FilmMagic