I don't recall P!nk being that fat. The nose is different, as are the teeth. There aren't enough piercings in the left ear either. The chin is off too. This looks like one of those "stars without makeup" where they find some random person who kind of looks like a star and uses their image and presents it as the singer. Plus P!nk is 34. The woman in the picture looks like she's nearly 50
I could be wrong, but P!nk has been without makeup before and I don't recall her looking anything like that.
ETA: I also don't see her ear tattoo either. I am also not trying to be a dick either. I just noticed it didn't look like her is all .