In my opinion, no.
But most of my friends think they’re emo.
I asked my best friend, and according to him “emo” songs are anything about self-harm or suicide…some songs like “Given Up” or “Breaking the Habit” fit these categories. Just last week one friend came to me and asked if I’m emo now. I said no, then he pointed out I listen to Linkin Park now, but I pointed out I’ve been listening to them for years.
The definition of “emo” to me is a style of rock music resembling punk but having more complex arrangements and lyrics that deal with more emotional subjects. To most of my friends, an emo is a person who is depressed and does self-harm.