Does anyone sing on their bike?

[Bad JuJu]

All the time. I am not a good singer at all, but I love it. If I'm riding by myself I'll usually have a song stuck in my head anyway so I'll start singing if the mood hits. Usually it's on long descents or flat sections. If I need some positive reinforcement, I'll change the words of a song and sing about how fast I am or how quickly I am going up a hill.

So far I've not embarrassed myself, but the roads I'm on are pretty quiet without many people around.

Pretty much the same as my experience. I get a song stuck in my head and it plays like a loop in my head while I sing along--as loud or soft as I want to. Currently, it's Neil Young's "Long May You Run" on the flats: "With your chrome heart shining/In the sun/Long may you run." On descents, I hum along to the Wicked Witch's theme from The Wizard of Oz. On uphills, it varies.

BUT, I only do this when I'm riding alone.