United Kingdom, Jan. 30 -- Pink went "white as a ghost" with fear when her husband Carey Hart injured himself on 'Special Forces'.

The 45-year-old pop superstar has been married to former professional freestyle motocross competitor Carey, 49, since 2009 and he had to leave the Fox reality show early after sustaining "dumb" injury but worried his wife when he called her in the middle of the night to tell her.

He told UsWeekly: "Truthfully, it was so dumb.

"It's my own fault that that happened. We were running this brutal workout through the mud holes and into the splash pond and all these things. It was absolutely freezing outside. I got hurt because I wasn't paying attention. It's my own fault that that happened. We were running this b...