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Carrie Underwood and Chace Crawford have split.

The American Idol winner, 25, and the Gossip Girl star, 22, had been dating since last July, but did not go public with their romance until October.

Underwood had spent Thanksgiving at his parents’ home in Dallas and part of her Christmas break with his relatives.

“She’s a classy girl,” Crawford said about Underwood in October.

Is there another man? For Chace?!

Rumors linking Crawford to buddy JC Chasez sparked Chasez to tell Kiss-FM 104.7 Wednesday, “For the record, we’re both straight. We’re not dating.”

Underwood’s rep was not available for comment; Crawford’s declined to comment.