Complex sentence: During this time Solis casually befriended the Los Angeles music video director Roboshobo, also known as Robert Schober and who has previously worked for Mastodon, Metallica, and The B-52s.
Split into simpler sentences: During this time Solis casually befriended the Los Angeles music video director Robert Schober, also known as Roboshobo. Schober has previously worked for Mastodon, Metallica, and The B-52s.