I want to record a parody song to be used in an online video to promote a product.
The song itself will not use any of the original recording.
It will use all original music, voice and completely different lyrics,
with the goal being to imitate (not exactly duplicate) the instrumentals
and impersonate the original singer's voice and style.
Neither the song, nor the video trailer will ever be sold,
though made available free on the internet, prior to product release for promotion.
The product being promoted will be sold commercially and independently.
It will include neither the song nor the video advertisement.
Do I still need permission from the copyright holders
to make and distribute this parody song and video?