Can't really comment on his teaching though since I couldn't actually find any instructional vids or links to anything instructional.
They have two children, Philip Sarkisian and Amelia Parks.
The vocal coaches that have genuinely helped me are Madeleine Harvey, Felicia Ricci and Justin Stoney.
This can be useful for students who want to achieve greater confidence in their voice and performing.
There was such respect showered upon her.