1. Beyonce made a mistake ONCE about saying she wrote Irreplaceable and now every time someone needs to say she lies they bring that up. There are countless other interviews from that time (and I think even before that) where she says that Ne-yo wrote it. 2. If you record a song, and change some of the lyrics, how are you NOT a writer of the song? I mean THAT particular version of the song. I understand that its really insignificant and truly there should be more significant changes but in theory if it's different then it's different. It's a black and white sort of thing. Is there changes? Yes? Well then it's changed.