She most definately does not!!! She has the most beautiful voice so why on earth would she? She's been singing since she was basically 3. I love her, she is amazing& I know she would Never lip sync. Sorry but anyone who says that...well thats BS.
NO WAY. Taylor Swift has an amazing voice and wouldn't need to do that. Also, you can tell if the voice is her own or not when people lip sync. She sings in the same voice that she talks, and you can tell that she isn't. There are some things you can just tell ;) TaySwift forever!
Not to be rude, but usually when people say that a singer probably lip syncs, they just don't like the singer or their voice, so they say that. (It's sorta like how people always say that Justin Bieber is gay, they just don't like him)