The "American Idol" dream is over for Creighton Fraker — the biological son of FLOTSAM AND JETSAM singer Eric "A.K." Knutson — who was one of 12 singers to be sent home during tonight's (Thursday, March 1) episode of the Fox singing competition."American Idol" bid farewell to half its semi-finalists on Thursday, cutting the field from 25 singers to just 13 and setting up viewers for the first round of the finals next week. Fraker has resided in Astoria, New York for the past eight years, although he grew up in South Dakota as the adopted son of a preacher. In an interview that aired on "American idol", Fraker said, "I was adopted when I was just a little baby and I grew up as a preacher's kid, singing church music. And then, I always had this rock and roll thing going on in me and it was kind of out of nowhere. Come to find out my birth father, who I never even knew until I was, like, 25 years old, was the lead singer of this big heavy metal band from the '80s called FLOTSAM AND JETSAM. I meet my dad and I'm like 'Oh, I get it, Fine. OK, It makes sense now.'" Fraker went on to say that Knutson is "the person who really inspired me to audition for this," adding that, "He's a person whose opinion I can respect, so if he says I should be doing this, I guess, OK, I'm gonna do it." After Fraker made the final 25, his birth dad said, "I've always hoped I would have a part in his life. I just can't wait for the rest of [his] career to start right now." FLOTSAM AND JETSAM released its first album, "Doomsday For The Deceiver", on Metal Blade Records in 1986. The bassist on that LP was future METALLICA member Jason Newsted. FLOTSAM AND JETSAM's latest album, "The Cold", was released in Europe in February 2011 via Nuclear Blast. The CD was made available in North America on September 14, 2010.