Just needed a bit of DNA

DR. CARY: To clone these bands from the 80's, all we needed was a bit of their DNA. And it's never hard to find pieces of the world's most popular bands.
DR. CARY: Foreigner, for example, was recreated from hair grabbed by crazed groupies. The Cars from dandruff left on skinny ties. Gary Numan from dried saliva on moog keyboards.
JOEL: That's incredible. DR. CARY: Incredible... and true.
JOEL: You're telling me Foreigner had "crazed groupies"? DR. CARY: Yes, Joel, in 1985, we... we all wanted to know what love was....