Jennifer Aniston compares notes with Sandra Bullock about dating the same guy

There’s no doubt she’s one of Hollywood’s most popular stars with a bevy of close friends.

And as Jennifer Aniston turned 51 on Tuesday, one of her nearest and dearest, Courteney Cox, was one of the first to pay tribute the TV icon.

‘No matter how hard you might try… there’s only one Jennifer Aniston. Happy birthday my dear friend @jenniferaniston! I love you!’ Cox wrote alongside a funny photo of the pair. In the snap, Cox looks just like her pal while wearing glasses and a blonde wig.

‘There’s only one’: Courteney Cox posted a sweet tribute to Jennifer Aniston on her 51st birthday on Tuesday

The duo – who starred together in Friends for 20 years – looked like siblings as they posed for the silly selfie.  

The birthday girl’s Morning Show co-star, Reese Witherspoon, 43, also honored her friend with a sweet message. 

‘Happy Birthday Jen! Happy Birthday Jen!’ she began. 

‘I couldn’t ask for a better friend and partner to chase my dreams with. Life is way more fun with you in it!!!’ 

Octavia Spencer also took to the comments of the photo to write: ‘Happy Birthday @jenniferaniston.’ 

Jen’s good friend Ellen DeGeneres shared a typically funny message on her Twitter account as she wrote: ‘Happy birthday, Jennifer Aniston. I can’t wait for our slumber party tonight. Portia bought Mad Libs!’ 

Besties: The duo are seen hanging out with Friends costar Lisa Kudrow last month

Besties: The duo are seen hanging out with Friends costar Lisa Kudrow last month 

Close friends: Reese Witherspoon was the first celebrity to wish Jennifer Aniston on her birthday

Close friends: Reese Witherspoon was the first celebrity to wish Jennifer Aniston on her birthday

Jennifer and Reese first worked together back on Friends twenty years ago in 2000. 

The mom-of-three played Rachel Green’s (Jennifer) younger sister, Jill Green, on the show. 

Reese acted on the show after just giving birth to her first child, Ava Phillippe, 20, and recently recalled how sweet Jen was to her. 

‘I was nursing Ava on set, and Jen just kept going, “You have a baby?” I was like, “I know, it’s weird”,’ she told Harper’s Bazzar, in October. 

Sweet: Octavia Spencer also took to the comments of the photo to write: 'Happy Birthday @jenniferaniston'

Sweet: Octavia Spencer also took to the comments of the photo to write: ‘Happy Birthday @jenniferaniston’ 

'Can't wait for our slumber party!': Ellen DeGeneres posted a message for the birthday girl

‘Can’t wait for our slumber party!’: Ellen DeGeneres posted a message for the birthday girl

The Green sisters! Jennifer and Reese first worked together back on Friends twenty years ago in 2000. They played sisters

The Green sisters! Jennifer and Reese first worked together back on Friends twenty years ago in 2000. They played sisters 

Back again: And after 20 years the pair returned to the silver screen together for their Apple TV+ hit, The Morning Show

Back again: And after 20 years the pair returned to the silver screen together for their Apple TV+ hit, The Morning Show

She continued: ‘She was so sweet to me. I was really nervous, and she was like, “Oh, my gosh—don’t worry about it!” I marveled at her ability to perform in front of a live audience like that with no nerves.’ 

And after 20 years the pair returned to the silver screen together for their Apple TV+ hit, The Morning Show. 

There Reese and Jen play morning TV news co-hosts, Bradley Jackson and Alex Levy and struggle to get along. 

A second season of the show has been ordered but filming is yet to begin.  It is expected to return in November 2020.

Read more at DailyMail.co.uk