american gangster trailer song?

hey all,
does anyone know the song that is playing in the background of the american gangster trailer?

thanks,
Schunn99

this?: YouTube - AMERICAN GANGSTER- Full Trailer
Jay-Z - Heart Of The City (Ain't No Love)
YouTube - Jay-Z - Heart Of The City (Ain't No Love)

or this?: YouTube - AMERICAN GANGSTER - Trailer # 2
first song: Bobby Womack - Across 110th Street
YouTube - Bobby Womack - Across 110th Street

The choir music part: i don't know.