he 'We Are Never Ever Getting Back Together' hitmaker has agreed to creator Lena Dunham's request to make a cameo appearance in the fourth series of the show, and there is scope for her role to be made even bigger if she wants it.
A source said: "Lena's been trying to persuade Taylor to appear in 'Girls' for ages. Taylor loves the show and has agreed to a cameo.
"Lena would also love her to take on a more permanent role and to pen some music for the show."
And model Cara Delevingne could also be set for an appearance after her friend Taylor revealed her to be a big fan.
The source continued to Grazia magazine: "Taylor told Lena that Cara is a huge fan of 'Girls'. Lena immediately agreed because Cara is her girl crush. She has been in touch with Cara's people already to discuss the idea."
Lena has previously revealed she uses Taylor's music as inspiration when writing the hit show.
She has said: "She writes her own destiny in a way which is very unusual, especially for a young woman in the world of pop music. I wrote half of the first season of 'Girls' listening to her 'Speak Now' album and wrote much of the third season listening to 'Red'."