It was said that they weren't working together. Hmm? This has nothing to do with this thread though.
Very true, Britney's location has absolutely nothing to do with Justin. Timbaland has a studio on his bus, he can work with whoever he wants, whenever he wants. I think the photo agency is reaching but what else is new.

so i was thinking maybe that had something to do with him singing that... prolly not but yeah
Once again, what Justin does on stage during his performance has nothing to do with Britney. He ad libs whatever he wants to and changes it whenever he wants. He's always done that and will continue to.