Were John Bush and Annie Haslam both lead singers?
John Bush (musician) John R. Bush (born August 24, 1963) is an American metal vocalist. He came to prominence in the 1980s as the lead singer and lyricist of Armored Saint, a traditional heavy metal band from Los Angeles, California. In 1992, he joined the thrash metal band Anthrax, with whom he remained until 2005 and briefly rejoined in 2009–2010. Bush has also been active with the reformed Armored Saint intermittently from 1999 to the present.
John Phillips (musician) John Edmund Andrew Phillips (August 30, 1935 – March 18, 2001) was an American singer, guitarist, songwriter, and promoter, most notably of the 1967 Monterey Pop Festival, a landmark event of the counterculture era and the Summer of Love. Known as Papa John, Phillips was a member and leader of the vocal group The Mamas & the Papas.