Status Quo are an English rock band who play boogie rock. The group originated in The Spectres, founded by Francis Rossi and Alan Lancaster in 1962, while still schoolboys. After a number of lineup changes, which included the introduction of Rick Parfitt in 1967, the band became The Status Quo in 1967 and Status Quo in 1969.

They have had over 60 chart hits in the UK, more than any other rock band to date. Twenty-two of these reached the Top 10 in the UK Singles Chart.  In July 1985 the band opened Live Aid at Embley Stadium with "Rockin' All Over the World". In 1991, Status Quo received a Brit Award for Outstanding Contribution to Music.  The band appeared on BBC's Top of the Pops more times than any other band. They have released over 100 singles and 33 albums, several of which were best-sellers.

Dog of Two Head is the fourth studio album by the English rock band Status Quo released by Pye Records.  At the time of recording, the band consisted of Francis Rossi (credited on the sleeve as Mike Rossi), Rick Parfitt (credited as Ritchie Parfitt), Alan Lancaster and John Coghlan (credited as John Coughlan).

March 1971 saw the new four-man lineup of the band release another non-album single: a Rossi/Young song called "Tune to the Music". The single was not a hit. The band then set to work writing and recording a new album. A couple of the songs, such as the opening track "Umleitung" (German for 'diversion') had been written as far back as 1970.

In November 1971 the album was released.

A single from the album, Rossi and Young's "Mean Girl", was to become a UK Top 20 hit some time later, in April 1973, after they had their third top ten British hit single with "Paper Plane", from their next album, Piledriver.

When "Mean Girl" charted, the record company decided to release another single from the album: a rerecording of "Gerdundula", the B-side to their 1970 single "In My Chair". This was released in July 1973, and failed to chart. The B-side to this single was Rossi and Parfitt's "Lakky Lady", taken from the band's previous album Ma Kelly's Greasy Spoon.

Tracklist A1Umleitung
7:07A2Nanana (Extraction)
0:15A3Something's Going On In My Head
4:58A4Mean Girl
3:54A5Nanana (Extraction)
0:45B1Gerdundula
3:50B2Railroad
5:39B3Someone's Learning
7:07B4Nanana
2:27
Notes Gatefold First Pressing.

Made in England Barcode and Other Identifiers Matrix / Runout (Side A stamped): NSLP 18371A-2△G Matrix / Runout (Side B stamped): NSLP 18371B-1△W Info courtesy of Wikipaedia and Discog.com