These are the craziest Bear Grylls celebrity challenges ever! We’re looking at the grossest, most grueling moments where celebs were pushed to their limits by Bear Grylls. From Courtney Cox to Zac Efron, these celebs were tested ruthlessly and some may or may not have drunk their own urine. Did we miss any celebrities and that were featured on a Bear Grylls show? Let us know in the comments!
#10. Courteney Cox
#9. Thom Evans
#8. Channing Tatum
#7. Mel B
#6. Zac Efron
#5. Stephen Fry
#4. Drew Brees
#3, #2, #1 ????
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