Any good music must be an innovation.
Regardless of who originally made it popular, any hit song becomes a challenge to the ingenuity and imagination of other musicians and performers.
I'm not an intellectual composer.
I write emotional music.
That was when the Spanish came in and conquered the Aztecs. I thought that was a clever thing.
In a sense, a hit belongs to the person who made it popular, but if a tune is good enough to attain tremendous success, then it certainly deserves more than one version, one treatment, one approach.