(assisted with writing, filming, and acting):

Kevin is a good friend of mine, and he makes great content. I help him out with stuff, from time to time -- whether it's with ideas, scripting, filming, recording, or even acting.

(trombonist on track, "This Christmas):

One of my peer's choral instructors was looking for a trombonist to play on a track for his up and coming Christmas album. My brother and I volunteered, and it was a pretty fun experience.