Stewart Pearce is the go-to voice coach for the stars

Internationally renowned vocal coach Stewart Pearce has a stacked resume. He's coached actors, diplomats, politicians, royalty and celebrities often facing towering media scrutiny, so they can show their 'authentic presence' to global audiences. Previous clients include Princess Diana, Minnie Driver, Mark Rylance and former British Prime Minister Margaret Thatcher. Not as famous at those names? His advice is applicable to anyone looking for their true self. He is also a spiritual guide. Susana caught up with Stewart in London and begins the conversation asking what he understands presence to be.