IN: 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".

Did they go in any other tours?

OUT: Bloc Party announced a tour of Australia and New Zealand in August 2007,

input: The Hawks left Ronnie Hawkins at the beginning of 1964 to go on their own. The members of The Hawks were losing interest in playing in the rockabilly style in favor of playing blues and soul music. In early 1964, the group approached agent Harold Kudlets about representing them, which he agreed to do, booking them a years' worth of shows in the same circuits as they had been in before with Ronnie Hawkins. Originally dubbed The Levon Helm Sextet, the group included all of the future members of The Band, plus Jerry Penfound on saxophone and Bob Bruno on vocals.  Bruno left in May 1964, and at that time the group changed their name to Levon and the Hawks. Penfound stayed with the group until 1965. Kudlets kept the group busy performing throughout 1964 and into 1965, finally booking them into two lengthy summer engagements at the popular nightclub Tony Mart's in Somers Point, New Jersey, where they played six nights a week alongside Conway Twitty and other acts.  The members of Levon and the Hawks befriended blues artist John P. Hammond while he was performing in Toronto in 1964. Later in the year, the group agreed to work on Hammond's album So Many Roads (released in 1965) at the same time that they were playing The Peppermint Lounge in New York City. Robertson played guitar throughout the album, and was billed "Jaime R. Robertson" in the album's credits.  Levon and the Hawks cut a single "Uh Uh Uh" b/w "Leave Me Alone" under the name The Canadian Squires in March 1965. Both songs were written by Robertson. The single was recorded in New York and released on Apex Records in the United States and on Ware Records in Canada. As Levon and The Hawks, the group cut an afternoon session for Atco Records later in 1965, which yielded two singles, "The Stones That I Throw" b/w "He Don't Love You" (Atco 6383) and "Go, Go, Liza Jane" b/w "He Don't Love You" (Atco 6625). Robertson also wrote all three of the tracks on Levon and the Hawks' Atco singles.

Answer this question "What was the driving force behind the name change?"
output: