She is growing increasingly frustrated living life in the constant media glare and would love a normal career.

Her cousin Alli Sims said: "Britney would always say, 'Maybe I just want to be a teacher. I just want to do something on a normal level. I've been something for so long.'"

Alli also defended her cousin's behaviour in 2007, which resulted in the mother-of-two shaving her head. She added to entertainment website Splash: 'It seemed a lot crazier than it really was because it made simple things just like going to Starbucks seem so out of hand.

'It was insane because of the paparazzi, but it really wasn't that bad when you were sitting there going through it personally.

'I just thought it was interesting how people expected us to stay home and not go anywhere. It's not her fault she has that many people following her around.'

Britney has worked hard to put her career back on track and is currently in the middle of a sold out world tour.