Question: "Hadda be Playin' on the Jukebox" is a poem that has been performed to music by Rage Against The Machine. Who was the original poet?

Context articles: Don't Rock the Jukebox
Iván Oñate
Rage Against the Machine (demo album)
Hadda Be Playing on the Jukebox
Musicmatch Jukebox
Mother Hubberd's Tale
Zack de la Rocha
Joyful Jukebox Music
The Ghost of Tom Joad (song)
Rage Against the Machine

Don't Rock The Jukebox is the second studio album by American country music artist Alan Jackson.
 It was released on May 14, 1991, and produced five singles on the Hot Country Songs charts; the title track, "Someday", "Dallas", and "Love's Got a Hold on You", which all reached Number One, and "Midnight in Montgomery" (a tribute song to Hank Williams) which reached #3.
 Fellow country music artist George Jones makes a cameo on the album, singing the last line on "Just Playin' Possum".
 ("The Possum" was one of Jones' nicknames.)
Iván Oñate was born in on March 17, 1948, in Ambato, Ecuador.
 He lives in Quito, Ecuador.
 He has been called “the most original poet of the new generation” by French critics Jean Franco and Jean-Marie Lemogodeuc They further remark that “one must pay attention to his disquieting visions, to his taste for life and vertigo, to his wild revelations mixing anguish and delirium.”
 He has published eight books of poetry and fiction, and his widely anthologized work has been translated into at least five languages.
Rage Against the Machine (also known as American Composite) is the original demo tape by Los Angeles rap metal band Rage Against the Machine, released in December 1991.
 The 12-track tape was recorded at Sunbirth Studio in Los Angeles, California after drummer Brad Wilk joined the band, but before they had played their first live show.
 When the band began performing live shows they sold the tape for $5, and sold around 5,000 copies.
 The band was signed to a record deal with Epic Records on the strength of the demo's success shortly afterwards.
"Hadda be Playin' on the Jukebox" is a poem written by Allen Ginsberg in 1975.
 It has been performed live, with accompanying music, by the band Rage Against the Machine, appearing on their album "Live & Rare".
Y!Music Musicmatch Jukebox, a remake of the original Musicmatch Jukebox made by Musicmatch, Inc., was an audio player that managed a digital audio library.
 It contained an online music store, Internet radio, CD playback and ripping software, and other features commonly found in jukebox software.
Mother Hubberd's Tale is a poem by English poet Edmund Spenser, written in 1578–1579.
 The more commonly read version of the poem is a revision of the original, created sometime in 1590, and published in 1591 as a part of Spenser's collection "Complaints".
 "Mother Hubberd's Tale" was sold separately from the rest of the collection it was published with, though the reason why is debated among scholars.
 The poem follows the story of a sick, bedridden poet, who has visitors that try to entertain him with stories.
 The only one the poet finds worthy enough to retell is the tale told by Old Mother Hubberd about an ape and a fox.
 The poem is an allegorical poem, with overarching themes in search of political reform.
 The poem was said to have antagonized Lord Burghley, the primary secretary of Elizabeth I, and estranged Spenser from the English court, despite his success in that arena with his previous (and most famous) work, "the Faerie Queene".
Zacharias Manuel de la Rocha (born January 12, 1970) is an American musician, poet, rapper, and activist.
 He is best known as the vocalist and lyricist of rap metal band Rage Against the Machine from 1991–2000 and 2007–2011.
 He left Rage Against the Machine in October 2000 and embarked on a solo career.
 With former Mars Volta drummer Jon Theodore, de la Rocha also co-founded One Day as a Lion in 2008.
Joyful Jukebox Music is a compilation album by The Jackson 5 released on the Motown label in 1976.
 It was released after The Jackson 5 broke their contract with Motown; Michael and his brothers had already released the album "The Jacksons" when "Joyful Jukebox Music" landed in the bins.
 Before this break, the Jackson 5 were working hard, dozens of songs per album; Motown gathered some that had been recorded around the years 1972–1975, for recording sessions and albums: "Skywriter", "Get It Together", "Dancing Machine" and "Moving Violation".
 Those years were very prolific for the Jackson brothers, since in addition to the aforementioned two albums and tracks, Jermaine, Michael and Jackie each had a solo album at that time (respectively "Come Into My Life", "Music & Me", "Jackie Jackson" and "Forever, Michael"), Tito also recorded instrumental solos.
"The Ghost of Tom Joad" is a folk rock song written by Bruce Springsteen.
 It is the title track to his eleventh studio album, released in 1995.
 The character Tom Joad, from John Steinbeck's classic 1939 novel "The Grapes of Wrath", is mentioned in the title and narrative.
 Originally a quiet folk song, "The Ghost of Tom Joad" has also been recorded by Rage Against the Machine.
 Springsteen himself has performed the song in a variety of arrangements, including with the E Street Band, and a live recording featuring Rage Against the Machine's Tom Morello as guest.
 In 2013, Springsteen subsequently re-recorded the track with Morello for his eighteenth studio album, "High Hopes" (2014).
Rage Against the Machine is an American heavy metal band from Los Angeles, California.
 Formed in 1991, the group consists of rapper and vocalist Zack de la Rocha, bassist and backing vocalist Tim Commerford, guitarist Tom Morello, and drummer Brad Wilk.
 They draw inspiration from early heavy metal instrumentation, hip hop acts such as Afrika Bambaataa, Public Enemy, and the Beastie Boys, punk rock such as the Sex Pistols and Fugazi, and Dutch crossover band Urban Dance Squad.
 Rage Against the Machine is well known for the members' revolutionary political views, which are expressed in many of the band's songs.
 As of 2010, they had sold over 16 million records worldwide.