Taylor Swift: I write smart, emotional lyrics

Around the 1:30 mark
"Im really in touch with my fans and I know what they like...What my fans in general were afraid of was that I would start making pop music and I would stop writing smart lyrics or I would stop writing emotional lyrics and when they heard the new music they realized this wasn't the case at all"

Source: https://www.youtube.com/watch?v=0qXIfuKFimc