Question: In the band ac/dc, which vocalist replaced Bon Scott?
Context: Family Jewels is a compilation DVD by the hard rock band AC/DC, featuring the group's music videos, live clips and promotional videos from 1975 to 1991.  It was released by Albert Productions and Epic Music Video on 28 March 2005.  The first disc contains videos from the Bon Scott era (1975–1980), such as the band's first TV appearance and a performance on television ten days before Scott died.  The second disc contains material from the Brian Johnson era (1980–1991) such as the videos for "Back in Black". AC/DShe (pronounced A C - D She) is an all-female AC/DC tribute band.  The band, hailing from San Francisco, covers only pre-1980 AC/DC songs (thus those written while Bon Scott was still alive).  The band was created by Nicki Williams and Amy Ward in 1997.  AC/DShe has toured throughout the US and in Europe and performed at the AC/DC tribute festival in Wales in 2004.  They began getting significant media coverage in November 2001, with a feature in "Details Magazine" and have had national and international press since, alongside other gender-specific tribute acts such as Lez Zeppelin and Mandonna.  They were also featured in an article on "Hustler" magazine that covered all-female tribute bands. 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. "Can I Sit Next to You, Girl" is the debut single by Australian hard rock band AC/DC issued on 22 July 1974.  On August 26, 1974, the song peaked at number 50 on the Aria charts and then disappeared.  This version has lead vocals performed by Dave Evans prior to his being replaced by Bon Scott, as well as drums by ex-Masters Apprentices member Colin Burgess and bass guitar by ex-The Easybeats member George Young (older brother of band cofounders Malcolm Young & Angus Young; co-producer).  Originally, AC/DC's first bassist, Larry Van Kriedt, played the bass parts, but George recorded his own over them later.  In 1975, after Scott joined, the group re-wrote and re-recorded the song as the seventh track on their Australia-only album "T.N.T.", released in December 1975 (see 1975 in music), and as the sixth track on the international version of "High Voltage", released in May 1976.  The title of this version of the song removed the comma, becoming "Can I Sit Next To You Girl". Brian Francis Johnson (born 5 October 1947) is an English singer and songwriter.  In 1980, he became the third lead singer of the Australian rock band AC/DC, after the death of their second lead singer Bon Scott.  He and the rest of the band were inducted into the Rock and Roll Hall of Fame in 2003.  In March 2016, Johnson stepped down from touring on the Rock or Bust World Tour due to hearing problems.  On 20 May 2016, Johnson stated in an interview "I've had a pretty good run" in AC/DC and implied that he might not be returning by saying "I'm just thankful, really, that I came out of it in one piece." 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. "Ride On" is a song and single by Australian hard rock band AC/DC originally released on the album "Dirty Deeds Done Dirt Cheap" and later re-released on the album "Who Made Who".  In both versions, the song is sung by Bon Scott.  Atypically for an AC/DC song, it has a sad, slow blues, almost ballad-like feel to it.  The lyrics concern a man reflecting on mistakes he has made in a relationship while drinking alcohol.  It has frequently been cited as one of AC/DC's best songs. Dirty Deeds Done Dirt Cheap is an album by Australian hard rock band AC/DC.  It was the band's third LP released in Australia and in Europe in 1976 but was not released in the US until 1981, more than one year after Bon Scott's death.  All songs were written by Angus Young, Malcolm Young and Bon Scott. Powerage is an album by Australian hard rock band AC/DC.  It was the band's fourth internationally released studio album and the fifth to be released in Australia.  It was also the first AC/DC album to feature Cliff Williams on bass.  All songs were written by Angus Young, Malcolm Young and Bon Scott.  "Powerage" was re-released in 2003 as part of the "AC/DC Remasters" series. "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".
Answer: Brian Johnson