Complex sentence: C.K. is a frequent guest on the Opie and Anthony radio show, which also features his "Lucky Louie" co-star Jim Norton, and was also a part of Opie and Anthony's Traveling Virus Comedy Tour with other comedians in 2007.
Split into simpler sentences: C.K. is a frequent guest on "The Opie & Anthony Show", which also features his "Lucky Louie" co-star Jim Norton. C.K. was also a part of Opie and Anthony's Traveling Virus Comedy Tour with other comedians in 2007.