When your friend is Justin Bieber

STRATFORD—Chaz Somers stretches out on the sofa, unfolding his nearly six-foot frame languidly –– a sleepy teenager on an end-of-summer day. It is 3 p.m. and Somers has been awake about an hour. Even an iced cappuccino has failed to make him completely alert; he yawns. He is 14 and another sun-drenched afternoon lies before him.

Downtown, tourists and locals mingle as light glints off the Avon