20th Century flossing music was Frank Zappa - "Montana."
So far, for the 21st Century, it's the Van Oodles.
On May 7 the Van Oodles, a Portland based group, released flossophy-101.
The link will let you hear the title cut.
For some listeners this song may get too close to the nitty-gritty of flossing.
The mature flosser (and many children) are likely to appreciate it.
Floss on, Van Oodles!