Enuff Z'Nuff (a sensational spelling of "enough's enough") is an American glam metal band from Blue Island, Illinois, founded by singer Donnie Vie and bassist Chip Z'Nuff. The band charted two times on the US Billboard Hot 100: "Fly High Michelle" (No. 47) and "New Thing" (No. 67).

The Chicago-area band has continually recorded and toured throughout their career of more than 30 years, releasing 18 studio albums and 28 official recordings to date. Their songs have been recorded by several other musicians, including Paul Gilbert, the Wildhearts, and Nelson. The group has appeared on MTV, The Howard Stern Show and The Late Show with David Letterman. Their music has been released on the major labels Atco Records and Arista Records, as well as several independent label releases.

Enuff Z'Nuff formed in 1984 as "Enough Z'Nuff." The band soon grew a live following and recorded their first demo songs, some of which would be officially released later in their career. The band's first single, "Fingers On It", received some minor recognition when it was featured in the 1986 movie Henry: Portrait of a Serial Killer. Band members during this period also included drummer B.W. Boeski and guitarists Gino Martino and Alex Kane, the latter of whom moved on to lead guitars for Life, Sex & Death and eventually formed the band AntiProduct.

By 1989, Enough Z'Nuff had revised their band name to "Enuff Z'Nuff" and released their first major label offering, a self-titled debut album on Atco Records. For this recording, founding members Donnie Vie and Chip Z'Nuff were joined by ex-Le Mans guitarist Derek Frigo and drummer Vikki Foxx. The band had two charting hits with the psychedelic-flavored pop rock songs "New Thing" and "Fly High Michelle", both of which received steady airplay on MTV. A few years later, the band's heavy glam rock appearance in the music videos would be parodied on Beavis & Butthead.

Frontman Donnie Vie has expressed disappointment that the label marketed the group as a glam metal act during this period instead of as a power pop group, which he considered to be a better descriptor of their sound, and suggested that the group would have retained their popularity had they been promoted as such.

For their follow-up album, 1991's Strength, the band consciously toned down their glam image. Strength was released in 1991 on Atco to strong reviews, including Rolling Stone magazine calling the group "The Hot Band of the Year." There were promotional videos for the singles "Mother's Eyes" and "Baby Loves You", as well as an appearance on the Late Show with David Letterman. However, this follow-up album did not sell nearly as well as their first.

The band filed for bankruptcy and left Atco Records, but soon after was picked up by Clive Davis' Arista Records label for their 1993 album Animals with Human Intelligence. Before this album's release, drummer Vikki Foxx quit the band to join Vince Neil's solo band. Foxx would be airbrushed out of the album cover, despite performing on each track of the recording. Foxx was replaced by New Jersey resident and former War and Peace member Ricky Parent, who also appeared for most of the album's promotional material. The band performed on Letterman again and shot a video for the single "Right by Your Side". However this release, much like Strength, received some critical acclaim but ultimately disappointed commercially.

A short time after Enuff Z'Nuff parted ways from Arista Records, guitarist Derek Frigo left the band, though he still recorded on occasion with them. Despite this setback, the band continued touring and recording, releasing albums on several indie labels and finding a solid fanbase overseas. Some notable events include many appearances on The Howard Stern Show, local appearances on the Mancow's Morning Madhouse radio program, a 1998 performance on The Jenny Jones Show, a pair of features on VH1 about hair bands in 1999, and attaining an opening slot for Poison's 2001 "Glam Slam Metal Jam" tour.