This is a big "OOOOOOOH! You're right! I didn't even notice!" moment.
But do you notice something...different about her Golden Globes look?
Maybe if you compare it to a red carpet photo from the EMMY Awards?
She got rid of all her tattoos! (Scroll back up and look again. We'll wait.)
In the harsher lighting, you can just barely make out the difference in makeup:
So, how did Gaga cover up her ink? She enlisted professional makeup artist Mike Mekash, who works on American Horror Story as well as on movies like Mad Max: Fury Road.
PHOTOS: Lady Gaga's changing looks through the years
Mekash revealed that he used PAX (an acrylic adhesive based makeup) and skin illustrators to complete the job, and he said on Facebook, "The covers I did looked great on the red carpet and on stage when she WON! And for 99% of the press photos." As for the why? You'd have to ask Gaga.
Plus, Leonardo DiCaprio exclusively explained to ET his hilarious reaction to Gaga's win at the Golden Globes: