Vi Hart

Vi Hart is a mathemusician! and one of the elders of the 𝜏 vs. 𝜋 debate

Doodling in Math Class - the series of videos that is possibly most well known

Vi Hart | creating Music, Mathematics, and Media to Lift the Human Spirit | Patreon

Vi Hart - Weebly - their music is not hosted on YouTube anymore, so you can learn about them here but the links don’t work. See their videos about math (and other cool topics) here: Vi Hart - Vimeo

Here are some of my favorites over time:

Vi Hart also helped popularize hexaflexagons!