Which artist, Aaron Lewis or Mark Rankin, went on to pursue a solo career?
Aaron Lewis: Aaron Lewis (born April 13, 1972) is an American musician and songwriter, who is the lead vocalist, rhythm guitarist, and founding member of the rock band Staind, with whom he has released seven studio albums. Aaron Lewis:  He has since ventured into country music with his debut solo EP "Town Line", which was released on March 1, 2011 on Stroudavarious Records.
i don't know