She shaved her head for Comic Relief less than two weeks ago and has already dyed her shorn locks blonde.

But despite her new eye-catching ‘do, Jessie J has managed to get people talking about something else.

The popstar delighted her fans as shared a snap of her slim bikini body while on holiday for her birthday.

Looking good: Jessie J shared a picture of herself in her bikini during her birthday break

The vivacious star, who turned 25 on Wednesday, has taken time out of her busy schedule to hop on a plane to celebrate turning a quarter of a century.

Sitting on a sunbed Jessie is looking downwards so her blonde buzz cut is on show, but it’s certainly not her hair which is taking centre stage.

Looking good! Jessie J posted this cute snap on her Twitter asking fans to spot the difference between the two shots

Blonde beauty: Jessie dyed her hair blonde earlier this week to celebrate her birthday

Dressed in a tiny blue bandeau bikini, Jessie’s tiny waist is visible for all to see.

Her long and lithe legs which she regularly showcases are also on display as she’s wearing just a pair of bikini bottoms.

Accompanying the image she wrote ‘#birthdaygetaway #tennisballhead.’

Charity: The singer delighted fans and raised lots of money when she shaved her head for Comic Relief a couple of weeks ago

The Nobody’s Perfect songstress also shared a picture of a beautiful sunset and clearly taken aback by the beauty around her, she wrote:

‘As the sun went down I said a little prayer… Appreciating the moments of beauty in the world, thinking of those who need my thoughts. Love light and good health xx’

Earlier in the week the Brit star, unveiled her newly dyed hair, writing: ‘It’s my birthday and I’ll be blonde if I want to.’

The Do It Like A Dude star also revealed she was spending her birthday on ‘holiday’ somewhere with a group of girlfriends.

They are back: Jessie will be back on TV on Saturday night for The Voice with Will.i.am, Danny O’Donoghue and Tom Jones

She tweeted: ‘I have no signal where I am so I’m hoping this sends!! Thank you in advance for all the birthday tweets and messages!!! I feel so happy right now!!! I’m 25!!! Waahhh!!! #birthdaymadness.’

Jessie shaved her head live on Comic Relief on March 15 to raise money for Red Nose Day.

She had vowed to remove her locks last September, and ended up raising over £500,000 for charity.

Explaining why she wanted to shave her head on the show, she said: ‘This programme started when I was born.

‘I wanted to shock people. I wanted to do something that wasn’t going to last five minutes and it’s fun.’

Jessie will be back on TV screens on Saturday night when the pre-recorded episodes of the second series of The Voice airs.