Good choice, such a good song. Ben could sing Bowie's part, and Brandon could sing Mercury's. They are one of the only bands out there that could actually pull that song off too.
I would think they could do a ton of songs that would sound soooo dope. Personally, I wanna hear them do a cover of tainted love.
I love Queen! I've actually thought of that myself, so I'm glad to learn I'm not the only one :)
I generally don't like anybody messing with Queen, there really is no replacement for Freddie Mercury (I know they've been on tour since his death and all but...sorry, though maybe good, just not the same)
...but that being said, if anyone is up to the challenge of performing "Under Pressure", I think Incubus can do it.
I'm not quite sure how to put it, but there's the emotional level of the song, and what makes me believe Incubus performing it would be successful (or even another Queen song?) is that I think they can understand it....or feel it....or....something like that, it sounded better in my head.