Britney Spears includes Justin Timberlake in 30th birthday tribute to sister Jamie Lynn

Britney Spears has shared a birthday message to her sister Jamie Lynn Spears with a throwback photo from the singer’s days with ex Justin Timberlake.

The pop star, 39, took to Instagram to pay tribute to her younger sibling as she turned 30.

And the American musician could be seen cosying up to her former boyband star ex Justin, 40, who she dated from 1998 to 2002.

Britney can be seen laughing with a broad smile across her face as Justin appears to be talking to Jamie Lynn, who looks much younger with shoulder-length blonde hair.

The Baby One More Time singer captioned the image: ‘Happy belated birthday to this beautiful soul!!!

‘I love you so much and damn it I wish I was as smart as you at 30!!!! It’s weird to say that I was basically your momma when you were younger and yes I’m still older but your soul is and always has been wise!!!!

‘I’m truly and genuinely inspired by your path and the life you have created for your beautiful children and I’m so f**king proud to call someone as beautiful inside as you my sister!!!!

‘And not only are you a beautiful soul, you’re so DAMN STRONG… I was extremely taken back and still am to this very day!!!

‘We play wrestled at home (such classy Southern chicks) and you put me to the floor in literally two seconds after I gave all my might.

‘I’ll never forget it!!! Maybe we should have a rematch. I mean things have changed since 6 years ago.

‘PS I wish I was as strong as you and happy birthday!!!!’

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The post comes after Britney denied not writing her own Instagram captions following allegations made by her former make-up artist.

Britney’s fans have been going through her social media posts with a fine-tooth comb as part of the Free Britney movement as they hope for her to be freed from her conservatorship.

The conservatorship has been headed up by her father, Jamie Spears, and means she has no autonomy over her life and career after her infamous breakdown 12 years ago.

After the release of documentary Framing Britney Spears, the former American Idol judge claimed in an Instagram post she was she didn’t watch the film, adding that her ‘life had always been very speculated… watched… and judged really my whole life!!!’, saying that people don’t know the full story.

However, her former make-up artist Billy Brasfield, who worked for her between 2012 and 2013, claimed: ‘The content is her, but… the words are NOT how she feels.’

The Toxic singer reportedly told TMZ that she never spoke to Billy, with the publication claiming Britney said: ‘No, I’m not taking to him at all. I write my posts. I’m not sure who he is talking to, but I am not talking to Billy B.’

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