鈥淲ho would write a biography of a song?鈥 asks Nelson. Alan Light, it turns out, and masterfully so. 鈥淗allelujah鈥 is just that 鈥 a biography of one of the most performed rock songs in history, from the hundreds of artists who鈥檝e performed it every year at 鈥渃ountless events both sacred and secular鈥 to the song鈥檚 unlikely origins. 鈥淚t captures the essence of a song and of the culture it was reflecting,鈥 says Nelson. 鈥淚t鈥檚 just so well done.鈥