Casting for my music video

For my casting i was planning on using my friend Tom Pearson as the only actor, the reason i was going to do this is that he already knows and likes the song, and helpfully he knows most of the lyrics which will enable the parts of the film where lyp syncing has to take places to happen much quicker and more fluidly as he will not have to learn or read the lyrics. I have not yet asked him whether he will help me which i need to do as soon as possible as if he can not help me i will need to find someone else who i can really on to help me with the acting.