Roots of Dan Hartman

Yusuf Islam, commonly known by his stage names Cat Stevens or Yusuf/Cat Stevens, is a British singer-songwriter and musician. He has sold more than 100 million records and has more than two billion streams. His musical career has explored folk, rock, pop, and, later in his career, Islamic music. Following two decades in which he performed only music which met strict religious standards, he returned to making secular music in 2006. He was inducted into the Rock and Roll Hall of Fame in 2014. He has received two honorary doctorates and awards for promoting peace as well as other humanitarian awards.

The Animals are an English rock band formed in Newcastle upon Tyne in 1962. Their original lineup consisted of singer Eric Burdon, guitarist Hilton Valentine, bass guitarist Chas Chandler, keyboardist Alan Price, and drummer John Steel. Known for their gritty, bluesy sound, they balanced tough, rock-edged pop singles against rhythm-and-blues-oriented album material, and were part of the British Invasion of the US.

Edgar Holland Winter is an American multi-instrumentalist, working as a vocalist along with playing keyboards, saxophone, and percussion. His success peaked in the 1970s with his band the Edgar Winter Group and their popular songs "Frankenstein" and "Free Ride" which remain staple tracks of classic rock radio. He is the brother of blues singer and guitarist Johnny Winter, who died in 2014.