Given the following context:  Following the mixed success of their musical pursuits in the 1990s, U2 sought to simplify their sound; the Edge said that with Pop, the group had "taken the deconstruction of the rock 'n' roll band format to its absolute 'nth degree". For their tenth album, All That You Can't Leave Behind, the group wanted to return to their old recording ethos of "the band in a room playing together". Reuniting with Eno and Lanois, U2 began working on the album in late 1998. After their experiences with being pressured to complete Pop, the band were content to work without deadlines. With Bono's schedule limited by his commitments to debt relief for Jubilee 2000 and the other band members spending time with their families, the recording sessions stretched through August 2000.Released in October of that year, All That You Can't Leave Behind was seen by critics as a "back to basics" album, on which the group returned to a more mainstream, conventional rock sound. For many of those not won over by the band's forays into dance music, it was considered a return to grace; Rolling Stone called it U2's "third masterpiece" alongside The Joshua Tree and Achtung Baby. The album debuted at number one in 32 countries and sold 12 million copies. Its lead single, "Beautiful Day", was a worldwide hit, reaching number one in Ireland, the UK, Australia, and Canada, while peaking at number 21 in the US. The song earned Grammy Awards for Song of the Year, Best Rock Performance by a Duo or Group with Vocal, and Record of the Year. At the awards ceremony, Bono declared that U2 were "reapplying for the job ... [of] the best band in the world". The album's other singles were worldwide hits as well; "Stuck in a Moment You Can't Get Out Of", "Elevation", and "Walk On" reached number one in Canada, while charting in the top five in the UK and top ten in Australia.  answer the following question:  What is the name of the group that wanted to return to their old recording ethos of "the band in a room playing together"?
U2