"From my point of view, Harry’s grown up a lot since the band first started; he’s more confident and independent now. Louis has stayed exactly the same. He’s always been crazy and he still is. Niall has stayed the same, but Liam’s loosened up a bit. He was a bit stiff before. Sorry, Liam! I don’t think I’ve changed that much. I’m probably a bit more confident now, but aside from that I’ve got the same beliefs and morals and I’m the same dude."
- Zayn on how the other band members have changed since 1D started