The band Servotron has an entire album dedicated to Robots and Christmas, and three other songs all dealing with robots. Devo-esque techno music and really fun stuff. Man or Astroman also has many songs dealing with robots. They’re a techno/surf band, and really good stuff.
Jon Bon Jovi once did a song entitled R2-D2 We wish you a Merry Christmas for some obscure Star Wars holiday album. I heard it a few years ago on the Stern radio show, it is even more embarrasing than the title indicates.
Somebody did a novelty song called “Marvin I Love You” about Marvin the Paranoid Android from Douglass Adams. Don’t recall who did it, but Doctor Demento plays it a lot…Timmy
They Might Be Giants - Robot Parade
Radiohead - Paranoid Android (admittedly, it’s not really ABOUT robots, it just references Marvin in the title)
Bad Religion - 21st Century Digital Boy