For this week's Rock Rundown, I talk about System of a Down teasing big plans by sharing pics of the band practicing, longtime AC/DC drummer Phil Rudd's revelation that he recently had a heart attack, the Red Hot Chili Peppers apparently making peace with Fox News host Greg Gutfield, Ozzy Osbourne's plans after Black Sabbath play their final show and Lars Ulrich's hopes for the future of Metallica.