Bo Burnham is not only part of the much-fanfared generation of young YouTube stars making music in their bedrooms, he's also as sharp as a budding Tom Lehrer with the dirtiness of Stephen Lynch. Bo dropped his first new video since his popular punny rap from eight months ago, "Bo Fo' Sho'." The new song "New Math" (shown below) is astoundingly, satisfyingly dorky. One line goes, "Whats domain, domain, range / A kid with too much in his pants." 'Cause it's XXY, get it? Hermaphrodites!

New Math:

The Perfect Woman:

Bo's new EP, "Bo Fo' Sho'," comes out on iTunes on the 17th.