Sublime did that toys cover and now everyone thinks they wrote it. I think Marley did too and also sometimes gets credit, might be mis-remembering though.
Ashes to Ashes - Tears for Fears over David Bowie
True Colors by Phil Collins rather than Cyndi Lauper
Wow, lots of stuff I'd forgotten about or didn't even know. Lots of songs mentioned that were more popular than their subsequent covers, but all good memories.
Bermuda
Nope, originally from the Spencer Davis Group (with Steve Winwood) afaik, and that version - with Pete York at drums - is still the best.I'm A Man, originally by Steve Windwood, much better(IMHO) later version by Chicago.