Question: She's a Rainbow was a song from which sixth British studio album by the Rolling Stones?
Context: Sticky Fingers is the ninth British and 11th American studio album by the English rock band The Rolling Stones, released in April 1971.  It is the band's first album of the 1970s and its first release on the band's newly formed label, Rolling Stones Records, after having been contracted since 1963 with Decca Records in the UK and London Records in the US.  It is also Mick Taylor's first full-length appearance on a Rolling Stones album, the first Rolling Stones album not to feature any contributions from guitarist and founder Brian Jones and the first one on which singer Mick Jagger is credited with playing guitar. "The Beatles" and "The Rolling Stones" were arguably the biggest bands of the 1960s.  Both bands started their careers in the early 1960s in the United Kingdom and rose to fame as part of the British invasion.  The Beatles rose to fame in the UK in 1963 with their singles "Please Please Me" and 'Love Me Do".  After a successful album contract the band decided to leave Liverpool and move to London.  The Rolling Stones were a struggling band at the time and the Beatles had become famous as a self contained Rock Band.  Original song content was getting tougher to acquire in the United Kingdom so the Rolling Stones were a Rock and Roll Blues cover group.  On meeting the Beatles at a London Pub; John Lennon and Paul McCartney agreed to write an original single for the Rolling Stones called "I Wanna Be Your Man".  The song gave the Stones their first commercial success and Mick Jagger and Keith Richards began writing as well. Blue & Lonesome is a covers album by the Rolling Stones—their 23rd British and 25th American studio album—released on 2 December 2016.  It is the band's first album to feature only cover songs, and their first studio release since 2005's "A Bigger Bang".  Despite the short time length just around 43 minutes, this album released as a double LP to maintain the clarity like CD. " Just Your Fool", a Buddy Johnson cover (though the Rolling Stones version is based on Little Walter's arrangement) was released as the first single from the album on 6 October.  Eric Clapton contributed guitar on two tracks. Undercover is the 17th British and 19th American studio album by The Rolling Stones, released in 1983.  After their preceding studio album, "Tattoo You" (1981), which was mostly patched together from a selection of outtakes, "Undercover" was their first release of all new recordings in the 1980s.  With the advent of the MTV generation, the band attempted to re-invent themselves for a new era.  It was the last Rolling Stones album to be released in Ian Stewart's lifetime. Their Satanic Majesties Request is the sixth British and eighth American studio album by the Rolling Stones, released in December 1967 by Decca Records in the United Kingdom and London Records in the United States.  Recording sessions saw the band experimenting widely with a psychedelic sound in the studio, incorporating elements such as unconventional instruments, sound effects, string arrangements, and African rhythms.  The album's title is a play on the "Her Britannic Majesty requests and requires ..." text that appears inside a British passport.  It is the first Stones album to feature the same track listings in both its UK and US versions. It's Only Rock 'n Roll is the 12th British and 14th American studio album by The Rolling Stones, released in 1974.  It was the last Rolling Stones album for guitarist Mick Taylor and the songwriting and recording of the album's title track had a connection to Taylor's eventual replacement, Ronnie Wood.  The album also marked the 10th anniversary since the release of the band's debut album, "The Rolling Stones".  "It's Only Rock 'n Roll" has a firmer rock sound than the band's previous album, the more funk - and soul - inspired "Goats Head Soup".  "It's Only Rock 'n Roll" reached #1 in the US and #2 in the UK. Some Girls is the 14th British and 16th American studio album by the Rolling Stones, released in 1978 on Rolling Stones Records.  It reached number one on the "Billboard" 200 album chart, and became the band's top selling album in the United States, certified by the RIAA as having six million copies sold as of 2000.  It was a major critical success, becoming the only Rolling Stones album to be nominated for a Grammy in the Album of the Year category.  Many reviewers called it a classic return to form and their best album since 1972's "Exile on Main St." "She's a Rainbow" is a lyrical song by The Rolling Stones and was featured on their 1967 album "Their Satanic Majesties Request". Flashpoint is a live album by British rock band The Rolling Stones.  It was released in 1991, having been recorded throughout 1989 and 1990 on the mammoth Steel Wheels/Urban Jungle Tour.  It was the first live album by the group since 1982's "Still Life".  It was recorded using binaural recording.  This gives the effect that the concert audience is behind the home listener.  The audience cheer track was taken from the Rolling Stones' 1970 live album "Get Yer Ya-Yas Out", complete with an audience member shouting out a request: "'Paint It, Black', 'Paint It, Black', you devil".  The two studio tracks on the album would be the last for bassist and long-time member Bill Wyman as a Rolling Stone. Aftermath, released in April 1966 by Decca Records, is the fourth British studio album by the Rolling Stones.  It was issued in the United States in June 1966 by London Records as the group's sixth American album.  The album is considered an artistic breakthrough for the band: it is the first to consist entirely of Mick Jagger–Keith Richards compositions, while Brian Jones played a variety of instruments not usually associated with their music, including sitar, Appalachian dulcimer, marimbas and Japanese koto, as well as guitar, harmonica and keyboards, though much of the music is still rooted in Chicago electric blues.  It was the first Rolling Stones album to be recorded entirely in the US, at the RCA Studios in California, and their first album released in true stereo.  It is also one of the earliest rock albums to eclipse the 50-minute mark, and contains one of the earliest rock songs to eclipse the 10-minute mark ("Goin' Home").
Answer: Their Satanic Majesties Request