Music Video is a bit of a grey area, but if the question is primarily about the video - story, themes, acting, cast etc, then it would probably be on topic. If it is primarily about the music or the artist, then probably not.
I can think of examples of music video which would clearly (IMHO) be on topic, for example Cloudbusting by Kate Bush tells a story of Willhelm Reich and son making a rain making machine, and stars Donald Sutherland and Terry Gilliam was involved in the creative process.
On the other extreme, a music video just involving the band playing the song is less interesting to the community here and a question would risk down voting at the very least.
If the question is more about AV production techniques, then the Audio Visual Production beta site may be more suitable.