Courteney Cox posts smiling pic with Jennifer Aniston and Lisa Kudrow to mark her 55th birthday

They became an iconic trio when they starred on Friends for almost a decade.

Now, Courtney Cox, Jennifer Aniston and Lisa Kudrow have delighted fans of the hit sitcom, which aired from 1994 to 2004, by reuniting for a smiling snap.

The occasion was to celebrate the 55th birthday of the Monica Geller actress.

She shared a selfie of herself with 50-year-old Jennifer, who played Rachel Green, and Lisa, who played Phoebe Buffay, to Instagram.

READ MORE: Courtney Cox’s daughter wears her red carpet dress from 21 years ago

Captioning the sweet image, Courteney - who has a 15-year-old daughter Coco with ex-husband David Arquette - wrote: “How lucky am I to celebrate my birthday with these two??? I love you girls. So much.”

Lisa, 55, was quick to reply: “LOVE you girls! Happy happy Court.”

Selma Blair and Poppy Delevingne were among other celebrities to wish the Cougar Town star a happy birthday.

Her 2.3m followers were delighted by the impromptu reunion of the show’s three female leads.

READ MORE: Jennifer Aniston, 50, defies her years in a tight leather mini dress on red carpet

The snap has been ‘liked’ 896k times, and fans revealed their amazement at how little the women had aged.

One person wrote: “My heart just exploded.”

Another commented: “After all these years they're still good friends.”

A third shared: “Aww they are still Besties.”

READ MORE: Jennifer Aniston, 50, rocks jaw-dropping bikini look for Harper's Bazaar cover

In another post, Courteney paid tribute to her boyfriend Johnny McDaid.

Captioning a pic of the couple, she wrote: “My all year birthday gift! I miss you J xx”

The Snow Patrol guitarist - with whom she broke off her engagement in 2015 before reuniting - is based in London.

Many fans said they hoped a show reunion is on the cards.

Last month marked 15 years since the final episode of the show first aired.

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