New Lyrics To A Copyrighted Song? (1 Viewer)

think you'll be fine under the right to parody

I'm no legal expert but I would assume both the music and lyrics are copyrighted and since your intended use is commercial, you'd be wise to seek permission (in writing).

You are legally entitled to use any song, be that melody or lyrics as part of a parody or critique, but it is absolutely against the law to then use it for any form of advertisement, unless you get an agreement from the artist, song writer, rights owner and studio.