Human League produced by Jimmy Jam and Terry Lewis course, and presumably the Kane Gang were aiming for a similar style, but presumably on a fraction of the budget

I didn't know until I read their Wiki entry that 'ver Gang also performed the 'Oooh Gary Davis' jingles on Radio 1.

Reggae.

Two more: Brian Wilson. (Although those which use the exact same backing track tend to be his Beach Boys-sung demos for songs he was to produce for other artists. "I Do" by The Castells is a vastly inferior recording to The Beach Boys' own demo of same, now found as a bonus track on the "Surfer Girl"/"Shut Down Vol. 2" CD.)

I once did a mash-up of "He's A Doll" by The Honeys and "Drive-In" by The Beach Boys. Different back-track, different keys, same melody. (Cf. the verses of "I Get Around" and "Don't Back Down" which interestingly bookend each other on the "All Summer Long" LP - the opening and closing track have the same melody in the verses.)

Edited to include the following illustrative clips:

"I Do," vocal demo by the Beach Boys:

"I Do" by the Castells, same backing track:

"He's a Doll" by the Honeys:

"Drive-In" by the Beach Boys (different backing, same melody in the verses):

"I Get Around" by the Beach Boys:

The master take of "Don't Back Down" doesn't appear to be on YouTube, but the vocals are here with the backing track dodgily filtered out - again, same melody in the verses (I first noticed this when I had the sheet music, before I'd ever heard the record):

Finally, some reggae:
"Liquidator" by the Harry J. All-Stars:

"Tons of Gold" by Val Bennett (same backing, speeded up):

"What Am I To Do" by Tony Scott (different recording of the same backing (they will not synchronise however much I change the pitch), but sounds as though it's from the same session but with a piano added during the vocal overdub):

Was Elton Motello's Jet Boy Jet Girl with a different vocal.

Phwooarr!

Being Boiled + Fade To Grey = £££

the last track on David Bowie's Lodger is essentially the same track as Sister Midnight from Iggy Pop's The Idiot.

Move On from the same album also uses some of the melody from All the Young Dudes played backwards.

and here's the source

Same Backing track,bits added and taken out.

Yesterday morning there was a programme presented by Guy Garvey about this very thing - when does 'homage' or nod of respect to something trip over into outright theft?

V interesting, should be on listen again...

the basic backing track for World In Motion had already been used as the theme tune for 'Reportage' (80s Janet Street Porter/Def II current affairs series for ver Yoof)

Dr Dre's What's the Difference and Blu Cantrell's Breathe

http://m.youtube.com/index?desktop_uri=%2F&gl=GB#/watch?v=AHwXYgzAXPI

Both by Neal Hefti. A neat bit of recycling.

First up - Batman

and then, The Odd Couple

Two songs, ON THE SAME ALBUM, have identical backing tracks - Train Of Love and Western Hero, from the excellent Sleeps With Angels (his last great album? Discuss...). Can't find a youtube clip for Train, so you'll have to listen on Spotify, or just take my word for it