I just have a feeling Avril will knock Beyonce from the #1 spot on Tuesday and Avril will stay there for the majority of the week. I dunno why, but I don't think Beyonce will stay #1 that long!
Beyonce will go to number 1 though but like most songs when they're first released it won't stay there for long until promo kicks in and the video (unless it is just a buzz single).
I'd be very surprised if Avril gets anywhere near number 1.