Rob Halford and Brad Delp are both what?
Rob Halford Robert John Arthur Halford (born 25 August 1951) is an English singer and songwriter, who is best known as the lead vocalist for the Grammy Award-winning heavy metal band Judas Priest and famed for his powerful wide-ranging voice. AllMusic says of Halford: "There have been few vocalists in the history of heavy metal whose singing style has been as influential and instantly recognizable", possessing a voice which is "able to effortlessly alternate between a throaty growl and an ear-splitting falsetto". Halford was voted number 33 in the greatest voices in rock by Planet Rock listeners in 2009. In addition to his work with Judas Priest, he has been involved with several side projects, including Fight, 2wo and Halford. In 1998, he came out as gay in an interview with MTV News.
Chris Layton Christopher "Chris" Layton (born November 16, 1955), also known as "Whipper", is an American drummer who rose to fame as one of the founding members of Double Trouble, a blues rock band led by Stevie Ray Vaughan. Born and raised in Corpus Christi, Texas, Layton moved to Austin in 1975 and joined the band Greezy Wheels. He later joined Vaughan's band Double Trouble in 1978. After forming successful partnerships with bandmates Tommy Shannon and Reese Wynans, they recorded and performed with Vaughan until his death in 1990. Layton and Shannon later formed supergroups such as the Arc Angels, Storyville, and Grady. Currently, Layton is the drummer for the Kenny Wayne Shepherd Band.