The Gilded Age star Carrie Coon wants a pop star to become Bertha Russell’s best friend in her battle against Enid (played by Kelley Curran). The Emmy Award-nominated actress recently appeared in an episode of The Tonight Show starring Jimmy Fallon to spill the beans on the new season.Fallon naturally addressed the growing popularity of the Julian Fellowes-created historical series, which recently returned with its fourth season on HBO. The Gilded Age Season 4 premiere featured unexpected cameos by David Letterman and Matt Damon, which even surprised Coon. The actress revealed she was surprised by Letterman and Damon's cheeky cameos, and said:"I mean, it's like the Met Gala. Everyone wants to come to set now."This prompted Fallon to reveal another fan of the show, Taylor Swift. When The Tonight Show host played a clip of the Love Story singer doing a Bertha Russell impression, Coon admitted Swift is 'really great' and would fit right into the show's setting. Carrie Coon then suggested making Taylor Swift part of Bertha's inner circle:"I mean, she'd be an excellent nemesis...maybe best friend...She can help me defeat Enid Winterton."Carrie Coon envisions Taylor Swift as Bertha's 'best friend' in The Gilded AgeMatt Damon and David Letterman went undetected as they appeared in a blink-and-you-miss-it cameo in The Gilded Age Season 4 premiere. Fallon addressed the growing popularity of HBO's historical series, which shifted attention to Taylor Swift, who was vocal about her love for the series when she appeared on The Tonight Show. Fallon was quick to show Swift's impression of Bertha Russell to Coon, and the actress replied:"Bertha would be like Taylor Swift if she was living today. Well, maybe not the singing bit."While praising Taylor Swift's impression, Carrie Coon remarked that the Blank Space singer should be in The Gilded Age as Bertha's best friend. While Coon initially suggested that Swift would make a great 'nemesis,' she eventually said that the singer could be Bertha's best friend and help her defeat 'Enid Winterton.'The Gilded Age has returned with Season 4 View this post on Instagram Instagram PostCarrie Coon's beloved historical series has returned with its fourth season on HBO. The Gilded Age Season 4 premiere was action-packed for both Bertha and Enid, as each navigated contrasting challenges. For starters, Bertha was occupied with Gladys' childbirth, which took a dangerous turn when the doctor revealed that the baby was breech. While Gladys' delivery was a success and she delivered a healthy baby boy, the doctor had to remove her uterus to stop internal bleeding from a hemorrhage, meaning she would not be able to have more kids. The doctor suggested revealing the tragic news to Gladys, but Bertha decided to keep it a secret from her daughter for now, which will create problems in upcoming episodes.Elsewhere, Enid was finally married to Oscar van Rhijn in The Gilded Age Season 4 premiere. While Oscar and Enid's marriage is of convenience, the couple shared ambitious plans to strengthen their position in society by opening artist salons. Things took a turn for Enid after Agnes learned that she was Bertha's former lady's maid. But Enid turned the situation in her favour by offering to fund President Cleveland's visit to the house.The Gilded Age Season 4 airs weekly episodes on HBO every Sunday. The finale is scheduled to air on HBO on December 20. You can stream the Season 4 premiere and the past seasons on HBO Max.For the latest scoops on your favorite TV shows and movies, follow SoapCentral.