cameos

/K AE1 M IY0 OW0 Z/
noun
  1. 1

    A piece of jewelry, etc., carved in relief.

  2. 2

    A single very brief appearance, especially by a prominent celebrity in a movie or song.

    โ€œFamous comic book writer Stan Lee had a cameo in the Spider-Man movie. He was on screen for perhaps ten seconds, but aficionados distinctly remember him.โ€

Source: https://en.wiktionary.org/wiki/cameo, https://en.wiktionary.org/wiki/cameos