Adele 'working with personal trainer on new diet'

Adele has reportedly hired a personal trainer in an effort to drop two dress sizes.

The 'Someone Like You' star is said to be enjoying twice-weekly sessions with her trainer, and has also given up smoking.

The Sun reports that the singer made the decision after having to undergo throat surgery last year, which saw her cancel a number of tour dates. She has also taken up Pilates, at the recommendation of her good friend Alan Carr.

"Adele has found so much more energy now she's quit smoking," a source told the newspaper. "She really wants to get healthier, now that she's half-way there.

"She had always been curious about taking up Pilates but until recently there just hadn't been any time."

However, the 23-year-old has apparently told friends that she does not want to give the wrong impression to her fans. In a previous interview, she said she did not want "to be some skinny mini with my t*ts out".

Carr previously spoke out to defend Adele when she was branded "too fat" by Chanel designer Karl Lagerfeld.

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Watch Adele perform 'Rolling In The Deep' at the Grammy Awards below: