To mix things up a bit...
Some of you know I help run the a cappella club at BYU. Last year we formed a group made out of the club officers and me. Here we are at a couple of different performances last year, I'm the stiff guy that looks a little older than the rest.

(I'm singing bass on the first two and tenor on the third.)
As long as you love me/Wide awake - arrangement by Pentatonix
https://www.youtube.com/watch?v=UbG9fihKpXU
The man who can't be moved - arrangement by me
https://www.youtube.com/watch?v=3Z8p2DyYnyw
All of Me/Say Something mashup - arrangement by the club president (the girl singing lead)
https://www.youtube.com/watch?v=W2oRtf8obps
I've been doing a lot more arranging for a cappella this past year, with my three most recent ones being Lego House (Ed Sheeran cover), Opera Singer (Cake), and Over You (Ingrid Michaelson), and we're performing Fall For You (Secondhand Serenade) at an event in a week and a half. We haven't preformed/recorded any of those yet, but if anyone cares you can listen to piano versions of my arrangements (i.e. a piano note playing each part instead of a singer) via the links here:
https://betteracappella.com/arrangementindex/categories/results/field_arranger:"John S. Colton". The guitar and bass players in the crowd might be interested to hear how I've translated the guitar and bass lines into something that would be singable by an a cappella group. By the way I've completely fallen in love with Musescore, a free music composition and notation software, for any writers/arrangers out there who might not have seen it yet.
I also sing in a classical choir, the Utah Baroque Ensemble, but I don't think we have any videos. And I play piano and trumpet, although I'm not really in practice with either of those right now.