I honestly think she just penned TSwift's first single.
Taylor's gonna go from writing Speak Now 100% by herself to not even having a writing credit in the lead single of he new album? no chance in hell.
Just because he's known for working with her does not mean he only works with her.
And let's remember, Taylor is not really strict country, she is part country and part pop, its not like Taylor has an album full of banjo and washboard songs (there was only one). So this might not necessarily be a full-on "country" song by any means.
Of course, there's massive potential for irritation here, but what keeps Ke$ha the right side of bitchy - for the most part, anyway - is her willingness to show her vulnerable side. She admits she can't take rejection on the country-tinged 'Stephen',