His app store page had a screenshot of his app playing a Madonna song...
"Finally, the service provider must not have knowledge that the material or activity is infringing or of the fact that the infringing material exists on its network. [512(c)(1)(A)], [512(d)(1)(A)]. If it does discover such material before being contacted by the copyright owners, it is instructed to remove, or disable access to, the material itself. [512(c)(1)(A)(iii)], [512(d)(1)(C)]. "
"Finally, the service provider must not have knowledge that the material or activity is infringing or of the fact that the infringing material exists on its network. [512(c)(1)(A)], [512(d)(1)(A)]. If it does discover such material before being contacted by the copyright owners, it is instructed to remove, or disable access to, the material itself. [512(c)(1)(A)(iii)], [512(d)(1)(C)]. "