CARRIE UNDERWOOD thought she was singing the praises of her hockey star hubby but ended up in the penalty box by telling fans to stop calling him Mr. Under­wood.

In a candid interview, the 29-year-old country star recently confided it “made her feel awful” when people identified her husband Mike Fisher by her last name.

“Somebody works real hard to make a name for themselves, a respectable name, and then it’s ‘Mr. Underwood,’” she complained.

But, in fact, the hockey pro rarely got called that until she brought it up, a friend told The ENQUIRER.

WHEN MIKE WAS TRADED FROM the Ottawa Senators to the Nashville Predators in 2011, some locals didn’t know him and mistakenly assumed his name was Underwood. But the confusion was quickly cleared up, according to the friend.

“Then after his teammates caught wind of Carrie’s com­ment, Mike enters the locker room and hears, ‘Why hello, Mr. Underwood! Can I carry your purse?’

“They think it’s funny that his wife has to come to the defense of a big, bad hockey player. It wasn’t a problem until she made it one.”

Now it’s Carrie who’s skating on thin ice!

“Mike was pretty steamed,” said the pal. “He told her never to raise any issues concern­ing him publicly again. And if she feels he’s got any problems, just know that he’s a big boy and can handle things his own way.”

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