Adele has undergone an incredible transformation this year, losing an incredible three stone in just six months after overhauling her lifestyle (Image: WireImage)
Turning heads in a low-cut form-fitting gown the London native oozed confidence as she showcased her toned frame.
Adele is believed to have lost more than two stone, reportedly due to The Sirtfood Diet, which sees slimmers fill up on plant-based foods like kale, buckwheat, green tea and tumeric.
The foods are known as sirtuin activators, and are said to control the way the body processes fat and sugar and regulate the appetite in the process.
Then this year she began hitting the gym more often, with a source telling PEOPLE: “After Adele started working out, she never looked back.”
They added: “She was instantly a changed person with a different mindset.”
Adele reportedly has regular personal trainer sessions and pilate classes, as well as enjoying a Stairmaster-like class called Rise Nation.
Music mogul Simon Cowell has ditched his unhealthy diet for a vegan lifestyle and hours in the gym (Image: FilmMagic)