From the Beach Boys to Queen and Jeff Buckley, falsetto singing has a long and distinguished presence in all types of music, one that continues to fascinate and enthral audiences. Alan Yentob delves into the world of falsetto singing, the high-pitched vocal range sung by men that comes closer to the female voice, and discovers why falsetto can express emotions that could not otherwise be achieved. With contributors including Frankie Valli, Brian May, Philip Bailey from Earth, Wind and Fire and Harrow School Chapel Choir, imagine... asks why men are compelled to sing in such a voice.