Sound familiar?

A little exercise in exploring ideas about intellectual property...is this stealing?

The Chiffons in 1963:



George Harrison in 1970:



Read about the subsequent legal battle here.

There's been no legal dispute, however, been T-Rex, seen here in 1971:

...and "derivative" Oasis, who released this in 1994:

Is there enough of a similarity between this song, written in 1932:

and this 1983 hit:

to justify this?