Having recently won the 2011 Boston Music Awards for “best pop/rock artist” and “best video,” Gentlemen Hall is riding high right now. They come to New York City this December to ring in the New Year. Gentlemen Hall will be at Pianos on the Lower East Side on Dec. 31, showcasing material from their newest EP, When We All Disappear. Performing along with them will be pop/rock group Atomic Tom. The New Year’s blowout will begin at 9 p.m.