Libera me from Hell - Tengen Toppa Gurren Lagann

Rap: Tarantula (from Hi-Timez)
Operetta: Kasahara Yuri
Lyrics: Tarantula/Traditional
Music & Arrangement: Iwasaki Taku

By popular demand, here's a link to the raw ^^
http://www.animewapers.com/nggallery/page-182/page/4652/