They are preparing to share their Apple TV+ drama The Morning Show with the world on November 1.
And Jennifer Aniston and Reese Witherspoon appeared to be in good spirits as they stepped out for dinner in London on Thursday.
The actresses, aged 50 and 43, could not stop smiling as they got out of a silver car on the eve of their hotly anticipated series being released.
Good time: Jennifer Aniston, 50, (left) and Reese Witherspoon, 43, (right) appeared to be in good spirits as they went for dinner in London on Thursday after promoting The Morning Show
Friends star Jennifer looked stylish in fitted black suede trousers and a blazer jacket which she accessorised with a polka dot scarf.
The actress, who recently debuted her Instagram account, wore her caramel tresses down for her dinner date with Reese and completed her look in stiletto boots.
Reese showed off her toned legs in a smart black skirt and top combination and also added a blazer to her ensemble.
The mother-of-three styled her blonde tresses into bouncy curls and also sported a pair of thick black rimmed glasses for the evening.
Looking good: Jennifer wore stylish suede trousers and a fitted blazer for the night in London
Laughs: Reese, who produced The Morning Show, donned a pair of thick black rimmed glasses for the evening and toted a small black bag
Reese completed her look by toting a small black handbag and adding height to her petite frame by wearing heels with an ankle strap.
The American stars were in London to promote The Morning Show and are set to appear on Jonathan Ross' talk show on Friday night.
In The Morning Show Reese