Whom has performed in more bands, Randy Blythe or Sharleen Spiteri? 
Randy Blythe: David Randall "Randy" Blythe (born February 21, 1971), is an American singer, best known as the vocalist and lyricist of American heavy metal band Lamb of God. Randy Blythe:  He has also performed guest vocals for Cannabis Corpse, Overkill and Gojira, and he is the lead singer of side-project band Halo of Locusts.
i don't know