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Tim McGraw and Faith Hill say their marriage is as solid as ever. 

The country couple is once again refuting rumors that they're splitting up.  Hill tells "People" the rumors "seem to be running like crazy right now," which she finds "perplexing." 

McGraw adds that rumors that he and Faith are divorcing have plagued them "since the first week" of their marriage.  He says he and Hill "don't even think about it" anymore, unless they're concerned that the stories are affecting their children.  But Tim adds that their three daughters have "been around it, too, so they laugh it off" as well. 

McGraw and Hill have been married for 17 years.  The singers gave their final "Soul2Soul" shows of this year at The Venetian in Las Vegas over the weekend.  They'll return to the venue with more performances starting January 17th. 

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