If I could make a "Save the world" playlist for my team, I would without hesitation include Watsky on it. Just from his most recent album, "Cardboard Castles", listen to
Strong as an Oak
Moral of the Story (it's "Work!", according to the hook- powerful stuff)
Tiny Glowing Screens
Sloppy Seconds (which begins with a suckerpunching F-bomb, so brace yourself haha)
Cardboard Castles
and Dent in the Moon
the man is a basket of get-up grenades, and it shows through his life's work both as a rapper and a spoken word artist. He does use profanity, but his lyrics are much more packed than "billboard" rap has come to have. I definitely recommend checking him out if you're looking for a new favorite work song
Oh, and just to have a robot-related song that I really like:
"Beta Love" by Ra Ra Riot
@cadandcookies haha yeah, there's always the Les Mis corner