In addition to belting cult classic carols, she debuted a hair transformation that bore a striking resemblance to one of the most iconic Christmas characters ... of Dr. Seuss's Whoville.

It's giving Whoville-meets-classic 80s perm. That said, as Gaga has previously proven with her otherworldy hair transformations, this look would have been achieved via a wig. After all, she did appear ...

In addition to belting cult classic carols, she debuted a hair transformation that bore a striking resemblance to one of the most iconic Christmas characters in history ... fantastical residents of Dr ...