Beyonce collabos with artists that are successful at the moment, but not just chart-wise, also critically successful. Outkast, JT, Shakira, & Gaga have all had chart & critical success- ones like Rihanna, Fergie & Nelly Furtado have not and she didn't collabo with them. I don't see it for Katy Perry but I can for Adele...
Hopefully the song isn't subpar like most of the collabos. The worst one would have to be Big Boi's rap in Hip-Hop Star...
I also hope Lift Off doesn't suck, See Me Now was a little disappointing.