NBC TV in the U.S. is running a show called the Sing-Off. It's a capella groups in a nation-wide contest.
First episode, first song, all the singers from all the groups did Under Pressure. Might not be your favorite type of thing, mine either, but I think the final minute is pretty effective. (later in the same episode, one group did Somebody To Love) Haven't seen any other episodes. What do you think of U.P.? link
I watched it but I didn't get to see the last have so I missed Somebody To Love. Oh well! Anyway, they did a pretty good job of Under Pressure. They did better than the original on the parts that David Bowie sung but on the parts Freddie sang they didn't do near as good as the original. I am from Chattanooga, TN, so the group from Lee University is not very far from us, like maybe a 45 minute drive, if that.
We Are The Champions acapella is the best I've ever heard. Heavily edited in the studio to give his voice more oomph I'd guess, but even if he did it line or word at a time, it is still a stunning vocal. I'd love to hear a Bo Rap style documentary on WWRY.WATC with Brian and Roger and any surviving commentary/video from Mike Stone (if any).
I had this on repeat yesterday until my girlfriend told me to "stop playing that fucking song".