Photo: In Touch Weekly

TAYLOR SWIFT showed off some serious cleavage at the "People's Choice Awards"earlier this month.  But she may have also showed off something else:  A BREAST IMPLANT SCAR.

It's not official that Taylor has newbies . . . but she is looking a little fuller.

And "In Touch Weekly" found a picture of Taylor's cleavage in which something that COULD be an implant scar is visible.