Well, it looks like "Haylor" may be a thing. 'X Factor' host Mario Lopez spilled on his radio show that One Direction's Harry Styles was indeed hanging out with Taylor Swift at rehearsals this week, and the pair got quite cozy.

"Taylor Swift was the special guest performer, and a little inside scoop for you: During rehearsals, Harry from One Direction came and slapped me on the back and said, 'Hey, Mario, how ya doing?'" Lopez revealed (quotes via MTV). "And I said, 'What are you doing here?' And he sort of [pointed] toward Taylor."

Lopez added that the pair "walked away hand-in-hand."

On Thursday (Nov. 15), we reported that T-Swizzle and Hazza were flirting prior to her performance of 'State of Grace' that night. "He is in her group," a witness said. "He watched her onstage going through her performance. He was sitting with her mom and the rest of her entourage," the spy added. “After she finished, he went up to the stage. They were joking and laughing. He picked her up and threw her over his shoulder and carried her off.”

This, in addition to that airplane necklace, may give credence to the "Haylor" rumors. However, it's also worth it to note that Demi Lovato and Niall Horan got close conveniently right when 'X Factor' was set to premiere. 1D and Simon Cowell go way back, and both the band and Swift have new albums to promote -- so there's a chance this may be a publicity stunt. We hope, anyway ... we can't bear to hear negative songs about Harry!

Watch the One Direction 'Little Things' Video