Neglected this thread a bit so wanted to get the ball rolling again.
In the photo in my avatar on the Left hand side is a guitarist called Robert White
He composed the guitar riff to My Girl that starts @ 4 seconds & runs throughout the whole track, and played on many other Motown hits as part of the labels studio band called The Funk Brothers.
http://en.wikipedia.org/wiki/Robert_White_(guitarist)
My Girl - YouTube