Jennifer Aniston's longtime hairstylist Chris McMillan shares topless snap of actress

She has just turned 50 after celebrating with hundreds of friends in Hollywood on Saturday.

And one of Jennifer Aniston's oldest friends, hairstylist Chris McMillan, was first to wish her happy birthday on Monday and shared a throwback photo of the duo embracing topless.   

'Happy Birthday Jen. To my friend. To my inspiration. To my teacher. I love this girl to the moon and stars.' Chris wrote in the caption of the black and white photo.

The image is from a photoshoot the pals did together n 2014 which appeared in the January 2015 edition of Allure. 

McMillan is the man behind her famous Friends haircut named 'The Rachel' and has tended to her locks over the years as she went from sitcom sweetheart to Hollywood icon. 

Meanwhile, Jennifer celebrated with dozens of pals on Saturday night at the Sunset Tower Hotel in Hollywood.

The bash was jam-packed with A-listers including her best girlfriends Gwyneth Paltrow, Reese Witherspoon and Kate Hudson.

Her ex-husband Brad Pitt was also in attendance who snuck inside discreetly, with his driver dropping him off right outside the door.

MailOnline