There is nothing stopping you from teaching them that way....

Looney Tunes and Merrie Melodies were originally started by Warner Bros. to showcase their music publishing interests, promote popular songs of the day which they owned and featured in their musical films, and to serve as advertisements for their recordings and sheet music. Today, the descendant Warner Music Group is one of the big four music publishing conglomerates. Fun fact.

Edit: Here's the short film, courtesy of the Internet Archive.

The only acceptable way

I'm learning about classical music because its the most fun to play on an instrument.