Adele's holiday photos show her dramatic weight loss and spark debate about body image.

Adele set fire to the internet this week when she took to Instagram to share photos from her Christmas party in which she is posing with a Grinch and a guy in a Santa suit (who may or may not be Santa, who's to say?!). And it wasn't the Grinch or Santa that got people in their feelings. It was the 31-year-old singer's svelte figure.

Many commenters are calling Adele "unrecognizable" in the photos, alluding to her significant weight loss. The media, and many of her fans, are praising the singer's "transformation."

But others are suggesting that it's not OK to comment on someone's weight, even if the comments are celebratory.