Single Ladies is definitely an odd song.
She's been doing fusion songs since 2003, but it really got interesting with SL.
It's a bit hip hop, a bit pop, some dance, gospel, and jazz.
And it all just blends somehow. And that whir whir whir sound... Infectious.
It took me a while to get it though, I was pro IIWAB.
I wanted that song to be #1 and SL to be forgotten. It turned out to be the opposite.