Jennifer Aniston turned 53-years-old on Friday and friends took to social media to wish her well.

Her The Morning Show co-star Reese Witherspoon was one of the first.

'When I think of Jen and all the wonderful adventures we have had together, I just smile. Knowing that @JenniferAniston is in the world makes me happy!' shared the Oscar winning actress.

Nifty at 53: Jennifer Aniston turned 53-years-old on Friday and friends took to social media to wish her well. Her The Morning Show co-star Reese Witherspoon was one of the first

Still a hottie: Aniston poses with the Sherry Lansing Leadership Award at The Hollywood Reporter 2021 Power 100 Women in Entertainment in December

The Wild star continued, 'Her love of life, her humor, and her endless positivity are such a gift. Let's all wish Jen Happy Birthday!'

The perky Legally Blonde star also added a reel with Jennifer on the hit TV show Friends which aired from 1994 until 2004.

The actresses played sisters on the series.  

'In honor of @jenniferaniston's bday: the Green Sisters,' she said, adding green heart emojis. 

Paris Hilton added four fire emojis in the comments box. 

Good Friends: The perky Legally Blonde star also added a reel with Jennifer on the hit TV show Friends which aired from 1994 until 2004

And now they work together on the award winning Apple+ TV series The Morning Show about morning show anchors in NYC.

In the afternoon, Aniston's Friends co-star Courteney Cox shared a post on Instagram.

The brunette beauty shared an image of a gold framed photo where she was next to Aniston in their early days of mega fame from Friends.

The image may even have been taken on the set of the sitcom. 

Friends for life: In the afternoon, Aniston's Friends co-star Courteney Cox shared a post on Instagram. The brunette beauty shared an image of a gold framed photo where she was next to Aniston in their early days of mega fame from Friends

 In the caption Cox explained where she found the photo.

'Happy birthday Jennifer Aniston. I found this picture in our apartment on set. It was the first year we became friends. I loved you then and even more now,' shared the mother-of-one.

Aniston was last seen on Thursday leaving Hawaii where she is filming the movie Murder Mystery 2 with Adam Sandler.

On Monday she shared a new post with her 39.6 million followers.

Sissy: Reese and Jen go far back. They played sisters on the smash hit TV series Friends which aired from 1994 until 2004

The Cake actress stood side by side with her MM2 costar Sandler.

The beauty wrote, 'Back to work with my buddy.' The two posed in front of the ocean as waves crashed behind them.

Soon after Adam shared the exact same image and caption. 

Set life: Aniston appeared on Instagram on Monday to share a new post with her Murder Mystery 2 costar Adam Sandler as she wrote, 'Back to work with my buddy'

The two look like an old married couple.

Jennifer was camera-ready in a floral wrap top and a pair of white shorts.  She wore a pair of dark shades and let her blonde locks fall around her face in loose beach waves.

Adam wrapped an arm around his cast mate in a striped salmon and white collared t-shirt.

He sported a full beard, with greying hair at the bottom. He also had on a pair of rectangle-shaped sunglasses.

Fun on the job: Also included in the slide was a video outtake from the set in which the crew and Adam danced to high-spirited music while taking a break from workingAlso included in the slide was a video outtake from the set in which the crew and Adam danced to high-spirited music while taking a break from working.

They were all wearing masks as the camera panned the scene.

For his part Sandler was in a black face mask along with black shades, wearing a short-sleeved blue shirt.

He held up two peace signs when the camera came around to him. 

The first film: The original Murder Mystery is about a married couple who were framed for the death of an elderly billionaire while vacationing overseas