Rush has mentioned before how he pays $100k per year for rights to the song, and how what's-her-name makes a big deal out of giving that money to PETA or some such group.
The irony, and I wonder if it's truly lost on these libs or not, is that engaging in the capitalist system of free market exchange gives them far more ability to contribute to stuff they value than does their incessant efforts at imposing a top-down command economy based on confiscating the fruits of other people's labors.