Gabourey Sidibe wasn't trying to show off her slim figure, but her fans quickly noticed a change in their favourite star.
Gabourey, known to many as Gabby, was just showing off her Biggie Smalls t-shirt on Instagram when the world picked up on her incredible weight loss.
The 33-year-old actress, who got her start in the acclaimed biopic Precious, was certainly looking slimmer in the selfie, but still as vibrant as ever.
Fans and followers were quick to congratulate the star on her new look.
"All the respect and envy for your weight loss. Very difficult to do. Again all respect," one fan tweeted.
@GabbySidibe All the respect and envy for your weight loss. Very difficult to do. Again all respect.— Eripiat ad infernum (@Mar974988) September 2, 2016
Gabourey Sidibe in 2015.
Others simply mentioned how fabulous she was looking.
WERRRRRRRKKKKKKKKKKKKKK @GabbySidibe !!!!! Thanks for the motivation!!— Jessica. (@JessMcBest) September 2, 2016
s/o to @GabbySidibe! Losing 50 pounds and still working! Anything is possible. Be great, girl! So proud of you.— Never Too Young Inc. (@NTY00) September 2, 2016
However, the star herself was surprised by the reaction to her photo.
"Um... That Instagram photo was mostly about showing off my Biggie Smalls tshirt and laid wig but...ya know... That's cool too," she Tweeted.
Um... That Instagram photo was mostly about showing off my Biggie Smalls tshirt and laid wig but...ya know... That's cool too. ????— Gabby SidiBae (@GabbySidibe) September 2, 2016
Either way - keep being amazing, Gabby!