Question: What band was formed first, Weezer or Royal Blood?

full_context: Document 1: Out of the Black (song): "Out of the Black" is a song written by Mike Kerr and Ben Thatcher of British rock duo Royal Blood. The song was originally recorded by the duo for release as a single, appearing on the band's debut single of the same name, released by Black Mammoth Records on 11 November 2013. The track later appeared as the opening track on the band's debut extended play "Out of the Black", and as the opening track on the band's eponymous debut studio album, "Royal Blood". The track was also part of the soundtrack to the film "Who Am I – No System Is Safe", as well as the video games "Forza Horizon 2" and "EA Sports UFC". It was also used in a featurette for the Netflix series "Daredevil" at the 2015 New York Comic Con. The song was also the official theme song for the 2016 professional wrestling event "WWE Roadblock". This song has also been covered by Billie Marten.
Document 2: Come On Over (Royal Blood song): "Come On Over" is a song written by Mike Kerr and Ben Thatcher of British rock duo Royal Blood. The song was originally recorded by the duo for the band's debut single, "Out of the Black", where it appeared as the B-side. The track later appeared as the third track on the band's debut extended play "Out of the Black", and as the second track on the band's eponymous debut studio album, "Royal Blood". The track also appeared on the band's third single, released by Black Mammoth Records and Warner Bros. Records on 21 April 2014. "Come On Over" also appears on the soundtrack for "WWE 2K15" and "Guitar Hero Live".
Document 3: Weezer discography: The discography of Weezer, an American rock band, consists of 10 studio albums, two compilation albums, one video album, six extended plays, twenty-eight singles and twenty-four music videos. Weezer's self-titled debut studio album, often referred to as "The Blue Album", was released in May 1994 through DGC Records. The album was a huge commercial success, peaking at number 16 on the US "Billboard" 200 and spawning the singles "Undone – The Sweater Song" and "Buddy Holly", both of which were responsible for launching Weezer into mainstream success with the aid of music videos directed by Spike Jonze. It has sold 3.3 million copies in the United States and has been certified triple platinum by the Recording Industry Association of America (RIAA), becoming the band's best selling album to date. Following the success of their debut album, Weezer took a break from touring for the Christmas holidays. Lead singer Rivers Cuomo began piecing together demo material for Weezer's second studio album. Cuomo's original concept for the album was a space-themed rock opera, "Songs from the Black Hole". Ultimately, the "Songs from the Black Hole" album concept was dropped; the band, however, continued to utilize songs from these sessions into work for their second studio album. "Pinkerton" was released as the band's second studio album in September 1996. Peaking at number 19 on the "Billboard" 200, it was considered a critical and commercial failure at the time of its release, selling far less than its triple platinum predecessor. However, in the years following its release, it has seen much critical and commercial championing.
Document 4: Ridel High: Ridel High are a mid 1990s American power pop band formed in Los Angeles by lead singer and songwriter Kevin Ridel. Kevin Ridel was the lead singer for Avant Garde which featured Rivers Cuomo of Weezer.
Document 5: Royal Blood (album): Royal Blood is the eponymous debut studio album by British rock duo Royal Blood. The album, produced by the band and Tom Dalgety, was released by Warner Bros. Records on 22 August 2014 in Friday-release countries and on 25 August 2014 in the United Kingdom.
Document 6: Royal Blood (band): Royal Blood are an English rock duo formed in Brighton in 2013. The band's sound is reminiscent of and rooted in modern blues rock, hard rock, garage rock, stoner rock and psychedelic rock. Their first album "Royal Blood" was released in August 2014.
Document 7: Royal Blood discography: English hard rock band Royal Blood has released two studio albums, two extended plays (EPs), eight singles and nine music videos. Formed in Brighton in January 2013, Royal Blood is a duo consisting of bassist and vocalist Mike Kerr and drummer Ben Thatcher. After signing with Warner Bros. Records, the duo released their debut single "Out of the Black" in October 2013, which debuted at number 29 on the UK Rock & Metal Singles Chart. In February 2014, "Little Monster" was issued as the band's second single, registering on the UK Singles Chart at number 95 and the UK Rock & Metal Singles Chart at number one. Both singles were later issued alongside their B-sides on the EP "Out of the Black" in March. "Come On Over" – initially featured as the B-side to "Out of the Black" – was released as a single in April, reaching number 68 on the UK Singles Chart. At the same time, "Little Monster" also returned to the charts, peaking at number 74 on the UK Singles Chart.
Document 8: Figure It Out (Royal Blood song): "Figure It Out" is a song written by Mike Kerr and Ben Thatcher of British rock duo Royal Blood. The song was originally recorded by the duo for the band's eponymous debut studio album, "Royal Blood", where it appears as the third track on the album. The track also appeared on the band's fourth single, released by Black Mammoth Records and Warner Bros. Records on 18 August 2014 as the lead single promoting "Royal Blood". "Figure It Out" also appears on the soundtrack for the video game "Pro Evolution Soccer 2016".
Document 9: The Offspring: The Offspring is an American rock band from Garden Grove, California, formed in 1984. Originally formed under the name Manic Subsidal, the band has consisted of lead vocalist and rhythm guitarist Dexter Holland, bassist Greg K., lead guitarist Kevin "Noodles" Wasserman and drummer Pete Parada since 2007. While Holland, Greg K., and Noodles have been constant members since the band was formed, the Offspring has gone through a number of drummers. Their longest-serving drummer was Ron Welty, who had been a member of The Offspring for 16 years; he was replaced by Atom Willard in 2003, and then four years later by Parada. The band is often credited—alongside fellow California punk bands Green Day, Bad Religion, NOFX, Pennywise and Rancid—for reviving mainstream interest in punk rock in the 1990s. They have sold over 40 million records worldwide, being considered one of the best-selling punk rock bands of all time.
Document 10: The Rentals: The Rentals are an American rock band fronted by vocalist Matt Sharp, best known as the former bassist for Weezer. Sharp has been the only consistent member since the group's inception. The band is best known for their 1995 single "Friends of P." The Rentals released two albums, "Return of the Rentals" (1995) and "Seven More Minutes" (1999) on Maverick Records before quietly splitting in 1999 following a world tour. The group reformed in 2005 and have since released several EPs and a third full-length album, "Lost in Alphaville", which was released August 26, 2014, on Polyvinyl Records. Due to the revolving nature of studio and live collaborators, determining who is actually an official member of the group at any one point is difficult.
Document 11: The All-American Rejects: The All-American Rejects is an American rock band formed in Stillwater, Oklahoma in 1999. The band consists of lead guitarist and backing vocalist Nick Wheeler, lead vocalist and bassist Tyson Ritter, rhythm guitarist and backing vocalist Mike Kennerty, and drummer Chris Gaylor. Nick Wheeler and Tyson Ritter are the band's songwriters; Wheeler is the primary composer and Ritter is the main lyricist.
Document 12: Weezer: Weezer is an American rock band formed in Los Angeles in 1992, consisting of Rivers Cuomo (lead vocals, guitar), Patrick Wilson (drums), Brian Bell (guitar, backing vocals, keyboards), and Scott Shriner (bass guitar, backing vocals). Weezer has sold 9.2 million albums in the US and over 17 million worldwide.
Document 13: Weezer (2016 album): Weezer, also known as the White Album, is the eponymous tenth studio album by American rock band Weezer, released on April 1, 2016. The album marks their fourth self-titled release and their first produced by Jake Sinclair. It is the first release through Crush Music and was distributed by Atlantic Records.
Document 14: Little Monster (song): "Little Monster" is a song written by Mike Kerr and Ben Thatcher of British rock duo Royal Blood. The song was originally recorded by the duo for release as a single, appearing on the band's second single of the same name, released by Black Mammoth Records and Warner Bros. Records on 10 February 2014. The single marked the band's first release under Warner Bros. Records after signing with the label in 2013. The track later appeared as the second track on the band's debut extended play "Out of the Black", and as the sixth track on the band's eponymous debut studio album, "Royal Blood". It is currently the duo's highest-charting single. The song is included as a playable track in "Guitar Hero Live".
Document 15: Blur (band): Blur are an English rock band, formed in London in 1988. The group consists of singer/keyboardist Damon Albarn, guitarist/singer Graham Coxon, bassist Alex James and drummer Dave Rowntree. Their debut album "Leisure" (1991) incorporated the sounds of Madchester and shoegazing. Following a stylistic change influenced by English guitar pop groups such as the Kinks, the Beatles and XTC, Blur released "Modern Life Is Rubbish" (1993), "Parklife" (1994) and "The Great Escape" (1995). In the process, the band became central to the Britpop music and culture movement, and achieved mass popularity in the UK, aided by a chart battle with rivals Oasis in 1995 dubbed the "Battle of Britpop".
ground_truth: Weezer