NEW YORK — Onstage, Finneas and Billie Eilish come across like a seasoned, veteran musical duo. The success has easily made Finneas one of The Associated Press’ Breakthrough Entertainers of the Year, a list that also includes “Watchmen” actor and Emmy winner Yahya Abdul-Mateen II and breakout President Donald Trump lip-sync-er Sarah Cooper. Finneas is the white-hot producer on the …
