Several songs by John are funny outside of their live performances. Often, John will muck up in the studio and, not being a virtuoso singer, leaves it in. These provide endless amusement.
Live performances of Headbutts both with and without Willy.
The album "Under the Covers and Over the Top" contains various covers of famous pop songs such as "I Am the Walrus" and "Space Oddity". John proceeds to take the mick out of them. The cover of "I Will Survive" is John singing Gloria Gaynor with a Bob Dylan voice. Heck, even the album title is funny.