"Mister Kingdom" is a symphonic rock

Symphonic rock

Symphonic rock is a sub-genre of progressive rock. Since early in progressive rock's history, the term has been used sometimes to distinguish more classically influenced progressive rock from the more psychedelic and experimental forms of progressive rock....

 song

Song

In music, a song is a composition for voice or voices, performed by singing.A song may be accompanied by musical instruments, or it may be unaccompanied, as in the case of a cappella songs...

 written by the Electric Light Orchestra

Electric Light Orchestra

Electric Light Orchestra were a British rock group from Birmingham who released eleven studio albums between 1971 and 1986 and another album in 2001. ELO were formed to accommodate Roy Wood and Jeff Lynne's desire to create modern rock and pop songs with classical overtones...

.

The song first appeared as the opening track of side 2, track number 6 from their 1974 album, Eldorado

Eldorado (Electric Light Orchestra album)

Eldorado - A Symphony By The Electric Light Orchestra is the fourth studio album by the Electric Light Orchestra, released in 1974.-Concept:...

. It was the B-side to the 1977 hit, Turn to Stone

Turn to Stone

"Turn to Stone" is a 1977 song by Electric Light Orchestra.The song is the opening track to the double album Out of the Blue. It was the first song released as a single from the LP. The single reached #18 in the U.K. charts and stayed there for 12 weeks. Out of four singles from the album, "Turn to...

, found on their album, Out of the Blue

Out of the Blue (Electric Light Orchestra album)

The 30th Anniversary Edition was released on February, 20th 2007 with three bonus tracks.-Personnel:ELO*Jeff Lynne – lead vocals, backing vocals, guitar, keyboards, percussion*Bev Bevan – drums, percussion, backing vocals, fire extinguisher on "Mr...

.

On the single version the solo slowly fades from 5:05 all the way to the very end, 5:29. But on the Flashback boxset, the solo fades about 16 seconds early than the LP

LP album

The LP, or long-playing microgroove record, is a format for phonograph records, an analog sound storage medium. Introduced by Columbia Records in 1948, it was soon adopted as a new standard by the entire record industry...

 version, also cutting the small orchestra

Orchestra

An orchestra is a sizable instrumental ensemble that contains sections of string, brass, woodwind, and percussion instruments. The term orchestra derives from the Greek ορχήστρα, the name for the area in front of an ancient Greek stage reserved for the Greek chorus...

 intro.

The song has a similar style to The Beatles'

The Beatles

The Beatles were an English rock band, active throughout the 1960s and one of the most commercially successful and critically acclaimed acts in the history of popular music. Formed in Liverpool, by 1962 the group consisted of John Lennon , Paul McCartney , George Harrison and Ringo Starr...

 song Across the Universe

Across the Universe

"Across the Universe" is a song by the English group The Beatles. It was written by John Lennon, and credited to Lennon–McCartney. The song first appeared on the various artists charity compilation album No One's Gonna Change Our World in December 1969, and later, in different form, on Let It Be,...

. The song features an extended orchestral playout starting from 4:16 to 5:29 transiting into Nobody's Child.

"This guy's always looking for a pot of gold." Jeff Lynne

Jeff Lynne

Jeffrey "Jeff" Lynne is an English songwriter, composer, arranger, singer, multi-instrumentalist, and record producer who gained fame as the leader and sole constant member of Electric Light Orchestra and was a co-founder and member of The Traveling Wilburys together with George Harrison, Bob...

 (2001 - Eldorado

Eldorado (Electric Light Orchestra album)

Eldorado - A Symphony By The Electric Light Orchestra is the fourth studio album by the Electric Light Orchestra, released in 1974.-Concept:...

Remaster)

"God knows what this is about, but I like the sound" - Jeff Lynne 2000 Flashback liner notes