Robert Plant is venturing into the realm of on-demand content with a new podcast dubbed Digging Deep. Plant's reluctance to rest on hi laurels has kept him busy making new music and reinterpreting some of Zeppelin's catalog with his own bands. He's also taken an active role in encouraging fans of Zeppelin to open their ears to other acts. It will be interesting to see what the music and topical scope of his new pcast presents. It debuts June 3 and should be available on multiple podcast platforms.