Question: Which 2 artists released a song titled "Revolution", one artist release had 3 different versions, in 1968 and 1969?
Context: EP2 is the second EP by English recording artist FKA twigs, released on 17 September 2013 by Young Turks.  The song "Water Me" was released as a promotional single in 2013.  There are 3 different versions of the album cover.  The first clearly shows twigs' necklace, a second where it is blurred, and a third where it has been erased. "Revolution" is a song by the Beatles, written by John Lennon and credited to Lennon–McCartney.  Three versions of the song were recorded in 1968: a slow, bluesy arrangement (titled "Revolution 1") for the Beatles' self-titled double album, commonly known as "the White Album"; a more abstract musical collage (titled "Revolution 9") that originated as the latter part of "Revolution 1" and appears on the same album; and a faster, hard rock version similar to "Revolution 1", released as the B-side of the "Hey Jude" single.  Although the single version was issued first, it was recorded several weeks after "Revolution 1", as a re-make specifically intended for release as a single. Pesa Gama is a family of diesel and electric locomotives built from 2012 by Pesa SA company.  Initially, only two units have been built - the first was a universal electric locomotive with an additional diesel engine, the second was built with only a diesel powered engine.  There are currently 16 locomotives in service, in 3 different versions. "Revolution" is a 1969 song by American jazz musician Nina Simone and Weldon Irvine.  It was released as a single in 1969 and on the album "To Love Somebody" in 1969.  The single release was split over two sides of a 45 rpm disc and these two edits were used as separate tracks on the album.  The song was released the year after the Beatles' "Revolution", and is seen by some as a variation of that song.  "Revolution" didn't do as well as expected and Simone has expressed surprise and disappointment at its lack of success. 3DCrafter (previously 3D Canvas) is a 3D modelling and animation tool developed by Amabilis Software.  It is available in 3 different versions - 3DCrafter, 3DCrafter Plus, and 3DCrafter Pro.  3DCrafter is freeware, whereas the Plus and Pro upgrades cost.  The upgraded versions allow for a larger number of import and export formats, as well as a number of additional functions.  The software is designed to be user friendly, and has an easy to use drag and drop interface. Prodikeys is a music and computer keyboard combination.  It is created by Singaporean audio company Creative Technology.  So far there have been 3 different versions of Prodikeys: Creative Prodikeys, Creative Prodikeys DM and Creative Prodikeys PC-MIDI.  It has 37 mini-sized music keys under detachable palm cover and comes with Prodikeys software.  The MIDI keyboard can also be used as a MIDI controller for third-party MIDI software.  It is compatible with Windows XP, 2000, and Linux, but is incompatible with Windows Vista, 7, 8, and Mac OS X. Between Heaven and Hell is Firewind's first album released in 2002 through Massacre Records in Europe, Leviathan Records in the US, EMI in Japan and Rock Brigade in South America.  There were 3 different versions of the cover art, European, Japanese and American. The Willow Tree Triptych is a limited edition EP by Rasputina of 100 units which was released by in 2009.  The album contains 3 different songs from 3 different countries, all titled "The Willow Tree", in American, English, Irish.  The album also features individual hand-numbered and hand-collaged covers by Melora & Hollis so each CD packaging is unique. JUMPing CAR is the fourth album released by Hey!  Say!  JUMP.  Through this album, the members want to tell their fans, ""During fun times and sad times, get on the JUMPing CAR and move forward with us!""  The album includes 15 songs including their singles: "Weekender/Asu e no YELL" and "Chau#/我 I Need You".  The album was released in 3 different versions: Limited Edition 1, Limited Edition 2, and Regular Edition.  Limited Edition 1 includes the Hey!  Say!  JUMP version of the mysterious unit Sensations and their song "Koro Sensations", which was the theme song to Ryosuke Yamada's starring movie "Assassination Classroom".  Meanwhile, Limited Edition 2 contains 3 unit songs, and Regular Edition contains 2 brand new songs. The Valmet Tuuli was a trainer aircraft, developed for the Finnish Air Force by the State Aircraft Factory ("Valtion lentokonetehdas", VL).  The aircraft was to be produced in 3 different versions.  The last version, Tuuli III was redesigned from scratch, and is basically an entirely different aircraft.
Answer: Nina Simone and Weldon Irvine