Billie Joe Armstrong goes obscure with his Monday cover, Puscifer teasing new music, and Dave Grohl does something awesome on Jimmy Kimmel Live.

The Red Hot Chili Peppers cash in, Brian Johnson playing with the Foos and The Offspring aren’t getting any....
Cornell movie to start filming, Nirvana in “The Batman” and it’s the final Metallica Monday!...
More trouble for Josh Homme, David Lee Roth Pulls the Plug, and another postponed Grammy’s show....