Well, if it happens, there's big chances for Bee to show up...

Now, if I had to pink someone, I'd go for Pink... she'd give vocals AND showtime hands down.
When she performed "Glitter in the air" at the Grammys during the "Funhouse" era everybody was like "holy ish". And she showed a different side of her personnality, she was very gracious.

People don't give her enough credits... I could also named "Sober" at the VMAs or "Try" at the AMAs. She knows how to come up with something special. She deserves it.

JLo has a good catalogue and she can hold a stage... but vocally she's very limited. I'd like to see her doing it some time, but Pink tops the list for me.