[3] The band's 1988 debut album, Kingdom Come, is to date their most internationally popular and biggest selling recording and features their most notable hit "Get It On".

The group was formed in 1987 in Hamburg, West Germany, after the breakup of Wolf's moderately successful rock project Stone Fury.

Stag and Frank had previously been members of the bands Industrials (CBS Int'l), WWIII[4] and Population 5,[5] which included bassist Prescott Niles (The Knack) and drummer Matt Sorum (The Cult, Guns N' Roses and Velvet Revolver).

The band was chosen to open for the North American Monsters of Rock Tour 1988, supporting Dokken, Scorpions, Metallica and Van Halen.

It had sold a hardly modest 486,000 units, only 14,000 short of achieving their second gold-certified album, when the band abruptly broke up for personal reasons in August 1989.

Around 1990, Wolf reformed Kingdom Come with a new lineup, which made one more international release on PolyGram, an album entitled Hands of Time (released in 1991), co-writing with harpist/songwriter Carol Tatum (Angels of Venice), which was recorded with several session guitarists and drummers, including future Poison guitarist Blues Saraceno and former Dancer drummer Bam Bamm Shibley, with Lenny Wolf himself playing the bass.

[7] In 1992, Stag joined forces with onetime Foreigner vocalist Johnny Edwards, former Krokus drummer Jeff Klaven and bassist David Seaton to form Royal Jelly, which got the attention of A&R man Denny Cordell at Island Records in 1993.

In 2014, the band reunited once again with guitarist Danny Stag, bassist Johnny B. Frank and drummer Hendrik Thiesbrummel for a series of concerts worldwide.

[2] When asked in July 2018 on the "Rock Talk with Mitch Lafon" podcast about Wolf's absence, drummer James Kottak stated, "He's just kind of done.

[10] In an April 2021 interview with MetalAsylum.net, vocalist Keith St. John stated that the group might consider releasing new material under a different name, due to yet-to-be solved issues with Wolf.

[13] With a sound that was thought by many to be highly derivative of Led Zeppelin's, there was a backlash from critics, with the band being dubbed "Kingdom Clone" in the press.

Moore, with Ozzy Osbourne on lead vocals, pokes fun at bands such as Kingdom Come on the track, criticizing their blatant use of Led Zeppelin's sound and image.

These claims are backed up by the cover of the Beatles classic "Across the Universe" from Ain't Crying for the Moon and the hard rocking tribute "Bon Scott" (in honor of the late AC/DC frontman) from the same album.