Around my house, we have a tradition. At any moment, really any of my family members could just chime in with any old Switchfoot lyric. Most of the time it fits right into the conversation (@thecarrotstick, I’m looking at you), leading to our joke that anything you need to say, you can say (or sing) with a Switchfoot lyric. Imagine “My Big Fat Greek Wedding,” but with Switchfoot songs.
Sometimes this happens with melodies as well, which has led to innumerable instances of something between Charades and Name-That-Tune. This too is very entertaining.