Bey + DC = 53 weeks #1 and therefore currently #2 after Mimi although RiRi is catching up. Their lead to #4 is impressive tho.
But let us remind that atrl still insists Pink, Taylor, Brit, Xtina, Katy, etc.. They are all bigger than Bey. Thats what I learned the last couple of days.
Taylor Swift, Adele, and Kesha all have "only" 3 number ones as well, but they're still listed. Gaga would have appeared on the list if not for "Right Round" and "Boom Boom Pow" holding "Poker Face" at #2 for as long as they did.