Which entity is this text about?

X is an American punk rock band, formed in Los Angeles in 1977, among the first wave of American punk. The original members are vocalist Exene Cervenka, vocalist/bassist John Doe, guitarist Billy Zoom and drummer D.J. Bonebrake. The band released seven studio albums from 1980 to 1993. After a period of inactivity during the mid to late 1990s, X reunited in the early 2000s, and currently tours.

Despite the overwhelmingly positive critical reception for their first four albums, the band was frustrated by its lack of wider mainstream success. Zoom had also stated that he would leave the band unless its next album was more successful. The band decided to change producers in search of a more accessible sound. Their fifth record, Ain't Love Grand!, was produced by pop metal producer Michael Wagener. It featured a drastic change in sound, especially in the polished and layered production, while the band's punk roots were little in evidence, replaced by a countrified version of hard rock. The change in production was intended to bring the band more chart success, but although it received more mainstream radio play than their earlier releases, it did not represent a commercial breakthrough. Zoom left the group shortly thereafter in 1986, the same year in which the feature-length documentary film, X: The Unheard Music, was released.  Zoom was initially replaced by Alvin, who had left the Blasters. The band then added a fifth member, guitarist Tony Gilkyson, formerly of the band Lone Justice. By the time the band released its sixth album, See How We Are, Alvin had already left the band, although he played on the record along with Gilkyson and wrote 4th of July for the band. Like Ain't Love Grand, the album's sound was far removed from the band's punk origins, yet featured a punchy, energetic, hard-rocking roots rock sound that in many ways represented a more natural progression from their earlier sound than the previous record had. After touring for the album, X released a live record of the tour, titled Live at the Whisky a Go-Go, and then went on an extended hiatus.  Back in 1984, X had released a cover version of "Wild Thing" as a non-album single. In 1989, the song was re-released as the lead single from the soundtrack to the hit film Major League. It later became a staple at sporting events, particularly baseball games, and was used by Japanese professional wrestler Atsushi Onita after he founded Frontier Martial-Arts Wrestling in 1989.

Entity:
X (American band)