1. Celebrities get slimed at Nickelodeon Kids' Choice Awards

2. Jack Harlow gets slimed on the stage during the Nickelodeon Kids' Choice Awards. REUTERS/Mario Anzuoni

3. Charlie Puth gets slimed on the stage. REUTERS/Mario Anzuoni

4. Hosts Miranda Cosgrove and Rob Gronkowski are slimed. REUTERS/Mario Anzuoni

5. Members of the USC Marching Band get slimed. REUTERS/Mario Anzuoni

6. Hosts Miranda Cosgrove and Rob Gronkowski get slimed. REUTERS/Mario Anzuoni

7. Isla Fisher speaks on stage. REUTERS/Mario Anzuoni

8. Charlie Puth gets slimed. REUTERS/Mario Anzuoni

9. Jack Harlow gets slimed. REUTERS/Mario Anzuoni

10. Charlie Puth and Gabrielle Union speak. REUTERS/Mario Anzuoni

11. Hosts Miranda Cosgrove and Rob Gronkowski perform. REUTERS/Mario Anzuoni

12. Hosts Miranda Cosgrove and Rob Gronkowski get slimed. REUTERS/Mario Anzuoni

13. Miranda Cosgrove and Rob Gronkowski are slimed. REUTERS/Mario Anzuoni

14. Charlie Puth gets slimed on the stage. REUTERS/Mario Anzuoni

15. Kid Cudi performs. REUTERS/Mario Anzuoni

16. Rob Gronkowski performs. REUTERS/Mario Anzuoni

17. Dixie D’Amelio receives the Favorite Social Music Star award. REUTERS/Mario Anzuoni

18. Hosts Miranda Cosgrove and Rob Gronkowski get slimed. REUTERS/Mario Anzuoni

19. Charlie Puth gets slimed. REUTERS/Mario Anzuoni

20. Heidi Klum poses as she arrives. REUTERS/Mario Anzuoni

21. Hosts Miranda Cosgrove and Rob Gronkowski get slimed during the Nickelodeon Kids' Choice Awards. REUTERS/Mario Anzuoni

22. Chloe and Halle pose as they arrive. REUTERS/Mario Anzuoni

23. Miranda Cosgrove poses as she arrives. REUTERS/Mario Anzuoni

24. Miranda Cosgrove and Rob Gronkowski pose as they arrive. REUTERS/Mario Anzuoni

25. Charli D'Amelio poses as she arrives. REUTERS/Mario Anzuoni

26. Charlie Puth poses as he arrives. REUTERS/Mario Anzuoni

27. Isla Fisher poses as she arrives. REUTERS/Mario Anzuoni