That would be Tony Cowell, Simon’s brother. On episode #47 of his Cowell Factor blog, he singles out “Burnin’ Bridges“:

“And someone else whom I’m desperate to hear more from is Nashville’s Michael Estok. I’m soooo impressed with your song Burning Bridges. Brilliant vocal – love this song. Very, very impressive.”

click here to listen or read the Cowell Factor blog #47