Complex sentence: That year, The Lost Trailers self-released its debut album "Story of the New Age Cowboy", followed in 2002 by "Trailer Trash", followed by 2004's "Welcome to the Woods" on Universal/Republic.
Split into simpler sentences: That year, they self-released their debut album "Story of the New Age Cowboy", followed in 2002 by "Trailer Trash". Their first major-label album was 2004's "Welcome to the Woods", issued on Universal/Republic.