Some context: Bloc Party are an English rock band, currently composed of Kele Okereke (lead vocals, rhythm guitar, keyboards, sampler), Russell Lissack (lead guitar, keyboards), Justin Harris (bass guitar, keyboards, saxophones, backing vocals) and Louise Bartle (drums, percussion). Former members Matt Tong and Gordon Moakes left the band in 2013 and 2015 respectively. Their brand of music, whilst rooted in rock, retains elements of other genres such as electronica and house music. The band was formed at the 1999 Reading Festival by Okereke and Lissack.
Bloc Party's second album, A Weekend in the City, was produced by Garret "Jacknife" Lee. It was released in February 2007, although it was leaked in November 2006. It became available for download on the UK iTunes Store before the physical release, and reached the number 2 spot on the UK Albums Chart. The album also reached number 2 on the Australian and Belgian charts, and debuted at number 12 in the Billboard 200, with 48,000 copies sold. The first single, "The Prayer", was released on 29 January, and became the band's highest charting single in the British Top 40, reaching number 4. In the buildup to the release of the album, BBC Radio 1 DJ Zane Lowe aired a live set by the band from Maida Vale studios on 30 January 2007, featuring a mix of old and new songs. On 1 February 2007, A Weekend in the City was made available to listen to for free through Bloc Party's official MySpace page. The next single, "I Still Remember", was Bloc Party's highest charting American single, peaking at number 24 on the Modern Rock Chart. The band released their third single, "Hunting for Witches", with an accompanying video clip in August 2007. The single became their only ARIA Chart entry, peaking at number 20. In October 2007, it was announced that Bloc Party would release a new single, "Flux", on 13 November--ahead of their end of year gigs. The electronic song, also produced by Jacknife Lee, was very different from previous singles released by the band. The band's first gig following the release of A Weekend in the City was on 5 February 2007, in Reading, and was broadcast live on BBC 6 Music. On 20 May 2007, Bloc Party headlined on the In New Music We Trust stage at the BBC Radio 1 Big Weekend in Preston. They also performed at the UK leg of Live Earth on 7 July 2007 at Wembley Stadium. Furthermore, the band played sets at T in the Park and Oxegen 07 that same weekend, as well as Glastonbury and the Reading and Leeds Festivals later in 2007. Bloc Party announced a tour of Australia and New Zealand in August 2007, which would include a special appearance at the Splendour in the Grass Festival on 5 August. On 17 September 2007, they recorded a set for the PBS show Austin City Limits a day after playing at the Austin City Limits Music Festival. On 27 October, the band performed a set at London's The Roundhouse with the Exmoor Singers, a London-based choir, as part of the BBC Electric Proms. The set included songs from both Silent Alarm and A Weekend in the City along with the first British live performance of "Flux".
Was the album a success?
A: reached the number 2 spot on the UK Albums Chart.

Some context: Ella Marija Lani Yelich-O'Connor (born 7 November 1996), known professionally as Lorde (pronounced lord), is a New Zealand singer, songwriter, and record producer who holds both New Zealand and Croatian citizenship. Born in the Auckland suburb of Takapuna and raised in neighbouring Devonport, she became interested in performing as a child. In her early teens, she signed with Universal Music Group and was later paired with songwriter and record producer Joel Little. At the age of sixteen, she released her first extended play, The Love Club EP (2012), reaching number two on the national record charts in both New Zealand and Australia. "
In January 2016, Lorde purchased a $2.84 million home in Herne Bay, Auckland. At the 2016 Brit Awards, she gave a performance of "Life on Mars" in tribute to the late English singer David Bowie. According to Billboard, Lorde said she'd be writing new material in December 2013. While responding to a fan on her Instagram account in August 2016, she said that the record had been written and they were in production stages. In November, she posted a note on her Facebook account stating: "Writing Pure Heroine was my way of enshrining our teenage glory, putting it up in lights forever so that part of me never dies, and this record - well, this one is about what comes next. [...] The party is about to start. I am about to show you the new world." On 16 February 2017, her recording label, Republic Records, published a date of 3/7 under "Confidential Title" that revealed her much anticipated sophomore record, which later was cleared by the label. On 26 February, Lorde teased her new music in New Zealand in an ad with the dates 3.2.17 NYC and 3.3.17 NZ. Two days prior to the release, it was revealed that her debut single from her second album would be "Green Light". Lorde revealed the title of her second album, Melodrama on 2 March. She released a new song from the album titled "Liability" on 9 March 2017. Lorde performed "Green Light" and "Liability" publicly for the first time as the musical guest on 11 March 2017 episode of Saturday Night Live. She revealed the 11 tracks of the album in May. The second single, "Perfect Places" was released on 2 June 2017. Six days later, the Melodrama World Tour was announced, beginning in Manchester on 26 September 2017, with Khalid acting as support for the European portion of the tour. The final promotional single, "Sober", was released on 9 June 2017, and the album Melodrama was released on 16 June 2017. Two months later, a remix of "Homemade Dynamite", featuring vocals from Khalid, Post Malone and SZA was released on the third single from the album. It received a nomination for Album of the Year at the 60th Annual Grammy Awards ceremony.
Did she perform at the Brit Awards ever?
A:
At the 2016 Brit Awards, she gave a performance of "Life on Mars" in tribute to the late English singer David Bowie.