Can you guess who this Grammy-winning singer is?

"Well fed and ready for the new year". Photo / Instagram

This might be the best throwback of 2019 so far.

British singer Sam Smith has shared a hilariously awkward photo of himself as a schoolboy to ring in the new year, much to the delight of his 11 million Instagram followers.

He captioned it: "Well fed and ready for the new year."

The singer, who has lost a dramatic amount of weight in recent years, was looking a little more plump in the childhood snap — and look, of all the celebrity photos we've seen lately, it's definitely the most relatable.

Sam Smith. Photo / supplied

The Promises singer's awkward post is just the latest in a string of hilarious celebrity #TBTs.

When it comes to naming the best of all time, it's really, really hard to go past this shot of a teenage Dwayne "The Rock" Johnson.

View this post on Instagram

When I took this iconic absurdity of a picture in 1996 I was one year removed from sleeping on a used mattress I took from a garbage dumpster in the back of an hourly sex motel. Couldn't afford to buy a bed so we do what we gotta do to get by. You can imagine all the fun colorful bodily fluids I tried my best to clean off. 21 years later I'm taking the same photo backstage hosting #SaturdayNightLive for the fifth time. If you're going thru your own tough times "used mattress" stage, do your best to have faith things'll get better and always be willing to outwork your competition because you never know where life is gonna take you. And ALWAYS remember to place a soft tissue under your left elbow as to protect the fabric of the cheap ass swag turtleneck that had you out here looking like a bad ass buff lesbian. Oh and tuck the thumb in the fanny pack. Always tuck the thumb. 🤙🏾

A post shared by therock (@therock) on May 23, 2017 at 6:57pm PDT