The Grammy Award winner shared a picture to her Instagram of her standing in front of a big floral wreath.
More than two-million people flocked to her Instagram to congratulate her on her weight loss.
The hitmaker lost weight by appointing a personal trainer and following a strict diet.
Breakfast with Martin Bester was stunned and commented on her look: ‘She’s looking fantastic, I didn’t recognise her. We’re here for the same great music from her. Congratulations to her on her birthday!’
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Adele said: ‘Thank you for the birthday love. I hope you’re all staying safe and sane during this crazy time.’