25 Celebrity Throwback Halloween Costumes That Completely Blew Our Mind

21. Chrissy Teigen as Guy Fieri:

22. Joe Jonas as Derek Zoolander:

23. Ed Sheeran as Austin Powers:

24. Channing Tatum & Jenna Dewan Tatum as Dr. Suess’s The Cat in the Hat:

25. Hoda Kotb & Kathie Lee Gifford as Betty Rubble & Wilma Flintstone: