canadian jukebox
When someone starts singing a song, and the another joins in, and then someone starts singing another song, repeat, keep interrupting and such; just keep starting songs, showing off all the songs you know, singing loudly together
On the bus, Madison was singing, and David joined in, but I didn't like the song they were singing, so I sung another one, and other people changed my song, and the bus became a Canadian Jukebox.