Lauren Mayer is a singer/songwriter/pianist who writes comedy songs about everything from Supreme Court decisions to the Kardashians. She proudly supports leftist causes including equal pay, reproductive choice, fair minimum wage, addressing climate change, and marriage equality.
From the 'About' information on YouTube:
Musical tribute to the progressive hero, income inequality 'truther' and all-around dreamboat
Plus, in addition to this video, don't miss this discussion: