Demi Lovato -- Ain't No Christmas Like an IHOP Christmas

Demi Lovato took a page out of Britney Spears' down-home playbook, and spent Christmas day stuffing her face in an unexpected, but awesome, place -- the International House of Pancakes!

Demi hit up an IHOP in Texas with her family for dinner on Tuesday, and the 'X Factor' judge's ruling was -- AWESOME! She tweeted ... "Literally the best Christmas I've ever had."

The only person more excited than Demi about the meal -- a rep for IHOP who tells TMZ, "We are thrilled that Ms. Lovato came to IHOP for her Christmas Dinner and we look forward to her visiting us throughout the year."