Fix problems:
- Lead too short.
- "Other work" was getting information creep with random one-sentence additions.
- "Acting career" subheader entirely unsourced.
- "Personal life" is also subject to one-sentence creep.
- "Discography", "Filmography", and "bibliogrpahy" are all unsourced.
Add content about Slipknot or Stone Sour's most recent studio albums (released in 2014 and 2017, respectively) in the "Music career" section.