Cara Delevingne may have cancelled her 21st birthday bash in Ibiza next week.

The supermodel, who reached her landmark birthday on Monday (12.08.13), has taken a six week detox holiday following a meeting with her modelling agency, STORM.

Cara was due to fly out celebrity friends including Rita Ora and Georgia Jagger to the bash on the Spanish party island, but is now residing at a villa in Mustique owned by rock legend Sir Mick Jagger after desperate pleas for a break from work.

As source told the Daily Mirror newspaper: ''Cara has, by her own admission, been burning the candle at both ends over the past year or so. Partying has taken its toll and she is absolutely knackered.

''Her family were especially worried she was taking the partying to extremes and sat her down for a talk. She agreed to ease up, and take herself away to totally chill out, detox and unwind.''

However, the party loving model, may not be ready to ditch the dancefloor just yet, as even a few days away have made her feel better.

The source added: ''She feels totally recharged already, I'm told - so much so she is now considering a trip to the white isle as soon as next week.''

Cara's self-imposed detox comes after she revealed plans to ditch her modelling career to concentrate on acting and singing in a bid to avoid breakouts of psoriasis - an auto immune disease which causes scabs on the skin - known to be caused by stress.

She told W magazine: ''I want to make music, I want to act, I want to sing. I want to do something that doesn't make my skin erupt.''