Every time I see something negative about Birthday's current performance I just chuckle to myself.
Like seriously, it's Katy ****ing Perry and it's still early days, the track has only just been sent to radio, the MV isn't even out yet, it's got smash written ALL over it, and she's coming off a MASSIVE smash hit in Dark Horse, which is STILL slaying in some countries. It's not going to hit #1 overnight.