what was the name of the song jimmy fallon and andy sambergwere singing?

Question by antigoniem: what was the name of the song jimmy fallon and andy sambergwere singing?
They were presenting at the MTV Video Music Awards and they sang/hummed a song, then the camera went to Beyonce’ and she was singing along with them. What song is it. Here’s some of it:
Doon Doon Doon Doon Wap Wap

or something like that…

Best answer:

Answer by pink69freak
it was the song by boys to men that won them a vma 10 yrs ago when samberg and fallon were kids and watched vma’s as for the song i cant tell ya off the top of my head i gotta look it up

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