Question: Waterfalls was the follow-up to the hit from what solo album?
Context: Boys and Girls is the sixth solo studio album by the English singer and songwriter Bryan Ferry, released in June 1985 by E.G. Records.  The album was Ferry's first solo album in seven years and the first since he had disbanded his group Roxy Music in 1983.  The album was Ferry's first and only number one solo album in the UK.  It was certified Platinum by the British Phonographic Industry and contains two UK top 40 hit singles.  It is also Ferry's most successful solo album in the US, having been certified Gold for sales in excess of half a million copies there. The Master is the second solo album by American hip hop recording artist Rakim, released November 30, 1999, on Universal Records.  It serves as the follow-up to Rakim's debut solo album, "The 18th Letter" (1997).  This album would be Rakim's last studio album for nearly a decade, until 2009's "The Seventh Seal". "Coming Up" is a song written and performed by Paul McCartney.  It is the opening track on his 1980 solo album "McCartney II".  Like other songs on the album, the song has a minimalist synthesised feel to it.  It featured vocals sped up by using a vari-speed tape machine.  McCartney played all instruments and shared vocal harmonies with wife Linda McCartney. Welcome to the Wrecking Ball!  is Grace Slick's 1981 follow-up to her solo album "Dreams" (1980).  Her third solo album, it was released before stepping back into her old position in Jefferson Starship.  The lyrics of the first track include numerous references to Slick's dislike of rock journalists and critics.  The album rose to #48 on the Billboard charts. Eternal Echoes is the name of John Barry's sublime final solo album.  It was his follow-up recording to "The Beyondness of Things", an original solo album of independent material not connected to any film.  The composer described the 11 pieces of "Eternal Echoes" as comprising "an album of sounds, of places and of objects that have always existed and always will exist.  They are without beginning or end.  They are infinite in our past and future." Before the duo's foundation, Rory Lee Feek worked as a songwriter in Nashville, Tennessee, and continued to work as a songwriter as a member of Joey + Rory.  Songs he wrote for other artists include Clay Walker's Top Five hit "The Chain of Love", Blake Shelton's Number One hit "Some Beach", Easton Corbin's "A Little More Country Than That", Blaine Larsen's 2005 hit, "How Do You Get That Lonely", and Jimmy Wayne's 2008 single "I Will".  Rory also founded the independent label Giantslayer Records in 2004, on which Joey recorded a solo album entitled "Strong Enough to Cry" in 2005.  This album was released in CD format and digital download in 2008.  Rory also recorded a solo album on Giantslayer Records, titled "My Ol' Man", which he made available only as a download. Tasty is the second solo album released by recording artist Patti LaBelle, her second solo album with Epic Records.  Compared to the success of her debut album, released the previous year, the album performed only modestly well but featured the popular tunes "Eyes in the Back of My Head", which became a club hit, the Latin soul flavored "Teach Me Tonight (Me Gusta Tu Baile)", the David Lasley composition "I See Home" (later covered a year later by Tina Turner) and the ballad "Little Girls".  "Eyes in the Back of My Head" became an international hit reaching the top five of the Italian singles chart.  The album also featured covers of songs by Boz Scaggs, The Drifters and Roy Hamilton in addition to a couple songs co-written by LaBelle herself, including "Teach Me Tonight" and "Quiet Time". Eagle When She Flies is Dolly Parton's 30th solo studio album, released on April 6, 1991.  Continuing the country sounds of 1989's "White Limozeen", the album featured collaborations with Lorrie Morgan and Ricky Van Shelton; additional supporting vocals were provided by Vince Gill and Emmylou Harris.  Dolly Parton's duet with Shelton, "Rockin' Years", topped the country charts, and the follow-up single co-written by Carl Perkins, "Silver and Gold", was a #15 country single.  Rounding out the hit singles was the title song "Eagle When She Flies", which only reached a #33 peak, despite spending 20 weeks on the Billboard Country Singles chart.  Her duet with Lorrie Morgan, "Best Woman Wins", appeared simultaneously on Lorrie Morgan's 1991 album "Something in Red".  She co-wrote the song "Family" with Carl Perkins and "Wildest Dreams" with Mac Davis.  The album also topped the U.S. country albums charts, Parton's first solo album to reach the top in a decade (and her last to do so until 2016) and reached #24 on the pop albums charts.  The album spent 73 weeks on the Billboard Top Country Albums chart.  It was her first album to reach number one album in the United States after 1980's "9 to 5 and Odd Jobs." The Lace is the only solo album by Cars' bassist and member Benjamin Orr.  It was released on October 6, 1986 by Elektra Records and features his only solo hit, the song "Stay the Night" which reached the Top 40 in 1987.  A follow-up single "Too Hot to Stop" was also released but failed to chart.  Wounded Bird Records re-released the album on CD on August 15, 2006. "Waterfalls" is a Paul McCartney ballad from his first solo album after Wings, "McCartney II".  The song has a stripped-down sound, with McCartney only playing a Fender Rhodes electric piano and a synthesizer and singing, and a short solo most likely played on an acoustic guitar.  It was released as a single with "Check My Machine" as its B-Side and reached chart position #9 in the UK.  In the US, however, it was his first single ever to miss the "Billboard" Hot 100 chart, only reaching number 106 despite being the follow-up to the number one hit "Coming Up".  In 2013, "Rolling Stone" rated it the #25 all-time Paul McCartney post-Beatles song, describing how it contrasted with Wings' prior single.
Answer: McCartney II