Question: AC/DC's seventh studio album "Back in Black was the first album without what  what member?
Context: Numbers is the seventh studio album by funk band Rufus, released on the ABC Records label in 1978.  It was the band's first album without Chaka Khan on lead vocals.  Instead, band members Tony Maiden and David "Hawk" Wolinski shared lead vocal duties, with additional female leads by Helen Lowe and Maxayne.  The album reached #15 on "Billboard"'s R&B Albums chart, #81 on Pop and included the single release "Keep It Together (Declaration of Love)" (US R&B #16). See You on the Other Side is the seventh studio album by Korn.  It was released on December 6, 2005, by Virgin Records.  It is their first album without long-time guitarist Brian "Head" Welch and the last album with original drummer David Silveria.  The album was first certified gold in the United States on January 12, 2006; a subsequent platinum record certification was awarded on March 16, 2006.  The album is best known for the involvement of renowned production team 'The Matrix', best known for coproduction on works by Avril Lavigne, Britney Spears, and Shakira, who managed to give Korn's music a different sound. "Hells Bells" is the first track of Australian hard rock band AC/DC's first album without Bon Scott, "Back in Black".  "Hells Bells" is the second single from "Back in Black", released in the fall of 1980.  The song also appears on "Who Made Who", AC/DC's 1986 soundtrack to the Stephen King movie "Maximum Overdrive" and on both versions of 1992's "AC/DC Live". Total Devo is the seventh studio album by the American new wave band Devo.  It was originally released in May 1988, their first album on Enigma Records, four years after their previous album, "Shout".  The album was recorded between 1986 and 1988, with the basic tracks recorded at Devo studios, in Marina del Rey, and the additional tracks at Master Control, in Burbank, California.  "Total Devo" was the first Devo studio album without drummer Alan Myers, who was replaced by former Sparks drummer David Kendrick.  This was the last Devo album to include use of the Fairlight CMI digital sampling synthesizer, which was mostly used for pre-sequencing the album, as well as for sampling in the choruses of "Some Things Never Change" and "Agitated." Meet The Smithereens!  is the seventh studio album by Carteret, New Jersey-based rock band The Smithereens.  The album features the band covering The Beatles' 1964 debut American album, "Meet The Beatles! ".  Based on the fact that he is not on the cover and that he is not credited in the insert booklet, this is The Smithereens' first album without original bassist Mike Mesaros (replaced by Severo "The Thrilla" Jornacion).  According to Pat DiNizio, the band immersed themselves in 1964 ephemera (like the bobbleheads that made the cover) in preparation for recording.  The album was released in stores on January 16, 2007. Bulletproof Picasso is the seventh studio album by American rock band Train.  The album was released by Columbia Records in Friday-release countries on September 12, 2014, and in the United States on September 16, 2014.  It is available on CD, vinyl and as a digital download.  It is the band's first album without drummer and founding member Scott Underwood, who departed from the band before it was recorded.  It is also the band's first album since 2006's "For Me, It's You" to feature a full band line up.  The producers were Azeem, Espionage, Greg Kurstin, Jake Sinclair, Butch Walker and Whams. Rock or Bust is a studio album by Australian hard rock band AC/DC.  It is their fifteenth internationally released studio album and the sixteenth to be released in Australia.  It is the shortest studio album ever released by the band; at approximately 35 minutes, it is two minutes shorter than their previous shortest album, "Flick of the Switch", which was released in 1983.  "Rock or Bust" also was the group's first album without founding member and rhythm guitarist Malcolm Young, who had retired from the band in 2014 due to health concerns, although he co-wrote every track on the album.  Bass guitarist Cliff Williams has also retired since "Rock or Bust" was released, drummer Phil Rudd was unable to participate in the supporting tour after being sentenced to house arrest, and vocalist Brian Johnson was forced to exit the band after the fifth leg of the album's supporting tour as a result of hearing loss. AC/DC are a hard rock band formed in Sydney, Australia in 1973 by brothers Angus and Malcolm Young.  Although the band are considered pioneers of heavy metal, its members have always classified their music as "rock 'n' roll".  AC/DC underwent several line-up changes before releasing their first album, "High Voltage", in 1975.  Membership remained stable until bassist Cliff Williams replaced Mark Evans in 1977.  In 1979, the band recorded their highly successful album "Highway to Hell".  Lead singer and co-songwriter Bon Scott died on 19 February 1980, after a night of heavy alcohol consumption.  The group briefly considered disbanding, but soon ex-Geordie singer Brian Johnson was selected as Scott's replacement.  Later that year, the band released their best-selling album, "Back in Black".  The band's next album, "For Those About to Rock We Salute You", was also highly successful and was their first album to reach number one in the United States.  AC/DC declined in popularity soon after the departure of drummer Phil Rudd in 1983.  Poor record sales continued until the release of "The Razors Edge" in 1990.  Phil Rudd returned in 1994 and contributed to the band's 1995 album "Ballbreaker". " Stiff Upper Lip" was released in 2000 and was well received by critics.  The band's new album "Black Ice" was announced in June 2008 and was released on October 20, 2008.  The album's first single, "Rock 'N Roll Train", earned AC/DC a Grammy nomination for Best Rock Group or Duo with Vocals.  Another "Black Ice" track, "War Machine," gained AC/DC their first Grammy Award win, for Best Hard Rock Performance. Back in Black is the seventh studio album by Australian rock band AC/DC.  Produced by Robert John "Mutt" Lange, the album was released on 25 July 1980 by Albert Productions and Atlantic Records.  By the late 1970s, AC/DC began to achieve significant popularity outside their native Australia, with high-energy live performances and a string of successful albums.  In 1979, they paired with producer Lange and recorded their international breakthrough, "Highway to Hell".  It is the band's first album with vocalist Brian Johnson, replacing Bon Scott, who died in February of the same year, shortly before the band started recording the album.  Instead of disbanding, the group decided to continue with Johnson. Magic is the seventh studio album by American rock band Smash Mouth, released on September 4, 2012 through 429 Records.  It is their first album in six years since the release of "Summer Girl" in 2006.  It is also the first album without original guitarist and primary song writer Greg Camp since his departure from the band.
Answer: Bon Scott