Yvonne Marianne Elliman is an American singer, songwriter, and actress who performed for four years in the first cast of the stage musical Jesus Christ Superstar. She scored a number of hits in the 1970s and achieved a US #1 hit with "If I Can't Have You". The song also reached #9 on the Adult Contemporary chart and number 4 in the UK Chart. Her cover of Barbara Lewis's "Hello Stranger" went to #1 on the Adult Contemporary chart, and "Love Me" was #5; at the time she had 3 top 10 singles. After a long hiatus in the 1980s and 1990s, during which time she left music to be with her family, she made a comeback album as a singer-songwriter in 2004.

Ian Gillan is an English singer who is best known as the lead singer and lyricist for the rock band Deep Purple. He is known for his powerful and wide-ranging singing voice.