Chris Cornell

Chris Cornell was an American musician, singer and songwriter. He was lead vocalist for the rock bands Soundgarden and Audioslave. Cornell is considered one of the chief architects of the 1990s grunge movement, and is well known for his extensive catalog as a songwriter, his nearly four-octave vocal range, and his powerful vocal technique. He was nominated for 16 Grammy Awards and won three.

Tom Petty

Tom Petty was an American singer-songwriter, multi-instrumentalist and record producer. He was the lead singer of Tom Petty and the Heartbreakers, a group he formed in 1976. He previously led the band Mudcrutch. Petty was also a co-founder of the late 1980s super group the Traveling Wilburys. In his career, Petty sold more than 80 million records worldwide, making him one of the best-selling music artists of all time. He and the Heartbreakers were inducted into the Rock and Roll Hall of Fame in 2002.