Ozzy Osbourne’s North American No More Tours 2 outing may be postponed again, but rest assured Zakk Wylde has no plans to sit around twiddling his guitar-playing thumbs during that unexpected time off.“You just keep busy,” says the longtime Osbourne sidekick, who just started his own North American tour with his Black Label Society band on Feb. 26 and has plans for his Zakk Sabbath tribute band.