Background: Testament is an American thrash metal band from Berkeley, California. Formed in 1983 under the name Legacy, the band's current lineup comprises guitarists Eric Peterson and Alex Skolnick, lead vocalist Chuck Billy, drummer Gene Hoglan, and bassist Steve Di Giorgio. Since its inception, Testament has had numerous lineup changes, leaving Peterson as the only constant member. Billy replaced original singer Steve "Zetro" Souza (who left the band to join Exodus as the replacement of Paul Baloff) in 1986, prior to the recording of their first studio album, The Legacy, and has been a member of the band since.
Context: As early as 2009, Testament commenced writing new material for their tenth album. In an interview with Metalheadz, guitarist Eric Peterson stated that there were about four songs written and that "there's other guys in the band who like to play the more rock melodic style but the next one is gonna be a bit heavier." In a January 2011 interview during the 70000 Tons of Metal cruise, frontman Chuck Billy revealed that Testament had been working on six new songs, with four or five "maybe left to write," and would begin recording their new album by early March. On 18 May 2011, guitarist Alex Skolnick posted an update on his Twitter, saying, "Another tune done! My riffs from last week [plus] some of [fellow Testament guitarist Eric Peterson's plus] new ones we wrote today. Planning one more, then we've got more than we need."  Testament began recording their tenth studio album on June 20, 2011. Drummer Paul Bostaph was unable to take part in the recording due to a "serious injury", although he was expected to rejoin when the band tours to support the album. Gene Hoglan, who played drums on the band's 1997 album Demonic, filled in for Bostaph. It was also reported that Lamb of God drummer Chris Adler would make a special guest appearance on a couple of bonus tracks.  Testament appeared at the California dates of the summer 2011 Rockstar Energy Drink Mayhem Festival, replacing In Flames.  On 14 July 2011, it was announced that the tenth Testament studio album would be called Dark Roots of Earth, which, after many delays, was released on July 27, 2012. Dark Roots of Earth debuted at No. 12 on Billboard 200, the band's highest chart position to date. Prior to the album's release, the band toured in the fall of 2011 with Anthrax and Death Angel. Overkill was invited to the tour, but due to the pre-production of their sixteenth studio album The Electric Age, they did not participate. It was announced on 1 December 2011 that Paul Bostaph had left Testament. Gene Hoglan recorded the drum tracks for Dark Roots of Earth and continues to play live with the band. In interviews, Testament have expressed pleasure in Hoglan's playing, and hope that he would continue playing with the band for the foreseeable future.
Question: What is the name of another festival or concert that they played at?
Answer: Rockstar Energy Drink Mayhem Festival,

Problem: Background: The Sweet (also known as Sweet) is a British glam rock band that rose to worldwide fame in the 1970s. Their best known line-up consisted of lead vocalist Brian Connolly, bass player Steve Priest, guitarist Andy Scott, and drummer Mick Tucker. The group was originally called Sweetshop. The band was formed in London in 1968 and achieved their first hit, "Funny Funny", in 1971 after teaming up with songwriters Nicky Chinn and Mike Chapman and record producer Phil Wainman.
Context: Guitarist Mick Stewart joined in 1969. Stewart had some rock pedigree, having previously worked with The (Ealing) Redcaps and Simon Scott & The All-Nite Workers in the mid-1960s. In late 1965, that band became The Phil Wainman Set when the future Sweet producer joined on drums and the group cut some singles with Errol Dixon. In early 1966, Stewart left and later worked with Johnny Kidd & The Pirates.  The Sweet signed a new record contract with EMI's Parlophone label. Three bubblegum pop singles were released: "Lollipop Man" (September 1969), "All You'll Ever Get from Me" (January 1970), and a cover version of the Archies' "Get on the Line" (June 1970), all of which failed to chart. Stewart then quit, and was not replaced for some time. Connolly and Tucker had a chance meeting with Wainman, who was now producing, and knew of two aspiring songwriters, Nicky Chinn and Mike Chapman, who were looking for a group to sing over some demos they had written together. Connolly, Priest and Tucker provided the vocals on a track called "Funny Funny" which featured Pip Williams on guitar, John Roberts on bass and Wainman on drums. The latter began offering the track to various recording companies. The band held auditions for a replacement guitarist and settled on Welsh-born Andy Scott. He had most recently been playing with Mike McCartney (brother of Paul) in the Scaffold. As a member of the Elastic Band, he had played guitar on two singles for Decca, "Think of You Baby" and "Do Unto Others". He also appeared on the band's lone album release, Expansions on Life, and on some recordings by the Scaffold. The band rehearsed for a number of weeks before Scott made his live debut with Sweet on 26 September 1970 at the Windsor Ballroom in Redcar.  The Sweet initially attempted to combine various musical influences, including the Monkees and 1960s bubblegum pop groups such as the Archies, with more heavy rock-oriented groups such as the Who. The Sweet adopted the rich vocal harmony style of the Hollies, with distorted guitars and a heavy rhythm section. This fusion of pop and hard rock would remain a central trademark of Sweet's music and prefigured the glam metal of a few years later.  The Sweet's initial album appearance was on the budget label Music for Pleasure as part of a compilation called Gimme Dat Ding, released in December 1970. The Sweet had one side of the record; the Pipkins (whose sole hit, "Gimme Dat Ding", gave the LP its name) had the other. The Sweet side consisted of the A- and B-sides of the band's three Parlophone singles. Andy Scott appears in the album cover shot, even though he did not play on any of the recordings.
Question: Was there anything special about the new line-up?
Answer:
Andy Scott appears in the album cover shot, even though he did not play on any of the recordings.