Lenox Avenue – also named Malcolm X Boulevard; both names are officially recognized – is the primary north–south route through Harlem in the upper portion of the New York City borough of Manhattan. This two-way street runs from Farmers' Gate at Central Park North (110th Street) to 147th Street. Its traffic is figuratively described as "Harlem's heartbeat" by Langston Hughes in his poem Juke Box Love Song. The IRT Lenox Avenue Line runs under the entire length of the street, serving the New York City Subway's 2 and ​3 trains.