What do you sing while cycling?

@ffm, I find myself singing a song, Woad, which is to the tune of Men of Harlech, if ever I ride around Brompton Road, which is mentioned in the song.

I was singing that the other day going down Stamford Hill in the snow (because I was getting snowed on, also mentioned in the song.)

This week's commuting song has been mostly Hot n Cold by Katie Perry, because work keep changing their mind about stuff.