Coachella (officially called the Coachella Valley Music and Arts Festival and sometimes known as Coachella Festival) is an annual music and arts festival held at the Empire Polo Club in Indio, California, in the Coachella Valley in the Colorado Desert. It was co-founded by Paul Tollett and Rick Van Santen in 1999, and is organized by Goldenvoice, a subsidiary of AEG Presents. The event features musical artists from many genres of music, including rock, pop, indie, hip hop and electronic dance music, as well as art installations and sculptures. Across the grounds, several stages continuously host live music.

The festival's origins trace back to a 1993 concert that Pearl Jam performed at the Empire Polo Club while boycotting venues controlled by Ticketmaster. The show validated the site's viability for hosting large events, leading to the inaugural Coachella Festival being held over the course of two days in October 1999, three months after Woodstock '99. After no event was held in 2000, Coachella returned on an annual basis beginning in April 2001 as a single-day event. In 2002, the festival reverted to a two-day format. Coachella was expanded to a third day in 2007 and eventually a second weekend in 2012; it is now held on consecutive three-day weekends in April, with the same lineup each weekend. Organizers began permitting spectators to camp on the grounds in 2003, one of several expansions and additions in the festival's history. The festival was not held in 2020 and 2021 due to the COVID-19 pandemic.

Coachella showcases popular and established musical artists as well as emerging artists and reunited groups. It is one of the largest, most famous, and most profitable music festivals in the United States and the world. Each Coachella staged from 2013 to 2015 set new records for festival attendance and gross revenues. The 2017 festival was attended by 250,000 people and grossed $114.6 million. Coachella's success led to Goldenvoice establishing additional music festivals at the site, beginning with the annual Stagecoach country music festival in 2007.

Even before we looked at [Empire Polo Club], it hit us. We wanted it to be far. So you surrender. So you can't leave your house and see a couple bands and be back home that night. We want you to go out there, get tired, and curse the show by Sunday afternoon. That sunset, and that whole feeling of Coachella hits you.

On November 5, 1993, during their Vs. Tour, American rock band Pearl Jam performed for almost 25,000 fans at the Empire Polo Club in Indio, California. The site was selected because the band refused to play in Los Angeles as a result of a dispute with Ticketmaster over service charges applied to ticket purchases. The show established the polo club's suitability for large-scale events; Paul Tollett, whose concert promotion company Goldenvoice booked the venue for Pearl Jam, said the concert sowed the seeds for an eventual music festival there.

Around 1997, Goldenvoice was struggling to book concerts against larger companies, and they were unable to offer guarantees as high as their competitors, such as SFX Entertainment. Tollett said, "We were getting our ass kicked financially. We were losing a lot of bands. And we couldn't compete with the money." As a result, the idea of a music festival was conceived, and Tollett began to brainstorm ideas for one with multiple venues. His intent was to book trendy artists who were not necessarily chart successes: "Maybe if you put a bunch of them together, that might be a magnet for a lot of people." While attending the 1997 Glastonbury Festival, Tollett handed out pamphlets to artists and talent managers that featured pictures of the Empire Polo Club and pitched a possible festival there. In contrast to the frequently muddy conditions at Glastonbury caused by rain, he recalled, "We had this pamphlet... showing sunny Coachella. Everyone was laughing."

After scouting several sites for their festival, Tollett and Goldenvoice co-president Rick Van Santen returned to the Empire Polo Club during the Big Gig festival in 1998. Impressed by the location's suitability for a festival, they decided to book their event there. The promoters had hoped to stage their inaugural festival in 1998 but were unable to until the following year. On July 16, 1999, Goldenvoice announced that the Indio City Council had approved the festival and would provide $90,000 for services such as traffic control and public safety. The funds came with a guarantee of repayment from the promoter, as the city was keen to avoid incurring another loss; the previous year's Big Gig festival cost Indio $16,000 due to last-minute changes to the lineup and poor attendance. The Coachella Valley Music and Arts Festival was officially announced on July 28 with a preliminary lineup of 40 acts; tickets went on sale on August 7.

Coachella's announcement came just one week after the conclusion of Woodstock '99, a festival in July 1999 that was marred by looting, arson, violence, and rapes. Goldenvoice's insurance costs increased 40% as a result and the company faced uncertainty regarding Coachella's tickets. Organizers were already aiming to provide a "high-comfort festival experience" for Coachella but rededicated themselves to those efforts after Woodstock '99. Advertisements boasted free water fountains, ample restrooms, and misting tents. Retrospectively, Tollett called the decision to announce a new festival just two months prior to staging it "financial suicide".