Some of y'alls music knowledge is so limited. Taylor Swift was not the first artist to work with Max Martin and Shellback. They've worked together with Britney Spears, Ke$ha, P!nk, Avril Lavigne and Maroon 5 among MANY other artists from 2008-2011 before Taylor worked with them.
If anything she'll probably be going in a more P!nk/Avril/Maroon 5 lane with them and hopefully bringing out some of her pop-rock roots of OOTB.
