Question: Which of the following musicians is known for his falsetto vocals: Thom Yorke or Saúl Hernández?
Context: "Lotus Flower" is a song by the English alternative rock band Radiohead, released on their eighth studio album "The King of Limbs "(2011).  It features singer Thom Yorke's falsetto over syncopated beats and a "propulsive" bass line.  Its music video, featuring Yorke's erratic dancing, spawned an internet meme. Headless Chickens were a melodic punk band from Exeter, England whose members included Thom Yorke (guitar and vocals), Simon Shackleton (bass and vocals), John Matthias (violin), Laura Forrest-Hay (violin), Martin Brooks (drums), Andy Hills (bass) and Lindsey Moore (drums).  In June 1989 they released their first single, "I Don't Want To Go To Woodstock", on the "Hometown Atrocities" EP, along with tracks from three other bands (Beaver Patrol, Jackson Penis and Mad At The Sun).  This is believed to be Thom Yorke's first ever released recording, on which he played lead guitar and sang backing vocals; Yorke later became famous as the singer of Radiohead. Jaguares is a Mexican alternative rock band formed by former Caifanes lead singer Saúl Hernández, ex-Caifan Alfonso André (drums), and two long-time friends Federico Fong (bass guitar) and José Manuel Aguilera (lead guitar). Saúl Alfonso Hernández Estrada (born January 15, 1964), is the lead singer, main songwriter and guitarist of Jaguares (band) and formerly of Caifanes, two of the most famous Mexican rock en español groups, the oldest (Caifanes) was formed in 1986. Dead Children Playing (first edition titled 'Dead Children Playing: A Picture Book') is a picture book by Stanley Donwood and Thom Yorke (under the alias of "Dr. Tchock") featuring artwork that has been used on English alternative rock band Radiohead's albums between 1996 and 2003, and on Thom Yorke's album "The Eraser".  The book also contains works of art that have not previously been released, made between 1999 and 2005. "Harrowdown Hill" is a song by Radiohead frontman Thom Yorke and is the eighth track on his 2006 album "The Eraser".  The song was also released as a limited edition single in the United Kingdom on 21 August 2006, peaking at #23 in the UK Singles Chart (see 2006 in British music).  "Harrowdown Hill" was Yorke's first solo single, and one of two to be released from "The Eraser"; however, the track "Black Swan" had already been issued as a radio-only single in some areas.  The song was written about biological warfare expert David Kelly who, as a matter of some contention, committed suicide in 2003.  However, there is speculation that he was murdered, as demonstrated in the song.  Thom Yorke himself confirmed the song's meaning in several interviews. Thomas Edward Yorke (born 7 October 1968) is an English musician and composer best known as the singer and principal songwriter of the alternative rock band Radiohead.  A multi-instrumentalist, Yorke mainly plays guitar and piano and works extensively with synthesisers, sequencers and programming.  He is known for his falsetto vocals; in 2008, "Rolling Stone" ranked him the 66th greatest singer of all time. El diablito (The Little Devil, which was originally to be called Volumen 2) is the second studio album by Mexican rock band Caifanes, released on June 26, 1990.  Original members Saúl Hernández, Alfonso André, Sabo Romo, and Diego Herrera returned, along with a new guitar player, Alejandro Marcovich, who joined in September 1989. Caifanes is a Spanish-language rock en español band from Mexico City.  Formed in 1987, the group achieved international fame during the late 1980s and early 1990s.  The original lineup consisted of Saúl Hernández (vocals & guitar), (lead guitar) Sabo Romo (bass guitar), (drums), and (keyboards and saxophone).  Caifanes’ style can be described as a hybrid of British new wave, progressive rock and Latin percussion underscored by deep, somber, and Latin American-Mexican-Spanish-influenced lyrics and the vocal style of Saúl Hernández.  Members of Caifanes have cited King Crimson and Teresa Escogido as a major influence. La Barranca has been a successful ongoing outfit for over a decade.  Based in Mexico City, they are led by guitarist and songwriter José Manuel Aguilera, who previously and concurrently worked with Sangre Azteka, Jaguares, Cecilia Toussaint, Steven Brown/Nine Rain (Tuxedomoon), and more.  He has an unusually economical style of playing that concentrates on great rhythms, superb tone, and very melodic solos.  After the original lineup—Aguilera, Federico Fong (bass), Alfonso Andre (drums), all of whom were guest members of Jaguares with former Caifanes frontman Saúl Hernández—went its separate ways, a second version of the band included Santa Sabina guitar virtuoso Alex Otaola and the extremely flexible rhythm section of brothers Jose María ("Chema") and Alonso Arreola.  The band's sound effortlessly moves from flat out rock to fusion-ish jamming and passes through a kind of Mexican folk influence along the way.  Aguilera is a good singer with a talent for finding simple melodies amidst rather complex songs.  On "El Fluir" the band decided to record live and to cut back on the keyboard and programmed additions to their music.  Surprisingly, the result was not an over-the-top jamfest but rather a very tightly arranged set of songs that hinted at the overwhelming power they could possess in concert.  The two guitar interplay between Aguilera and Otaola was highly impressive as they explored all forms of playing together and against one another (with Otaola pulling all sorts of radical sounds out of his guitar).  "El Fluir" was their first US release since "Tempestad" in 1998.  This edition was further sweetened by the inclusion of a previously unreleased bonus track and a video for the first single "Pare de Sufrir."
Answer: Thomas Edward Yorke