Slaves On Dope hposted a teaser of their mew song “Interplanetary Mission” featuring Mastodon’s Bill Kelliher. The track will be on the band’s new album “Horse,” which will be released on September 9. “Horse” Track Listing: 01. “Electric Kool-Aid” 02. “Health Food & Heroin” 03. “Freebasing” 04. “K-Hole” 05. “Script Writer” (feat. Run DMC’s Darryl…