Question: What was the song on Vampire Weekend's 2013 album with a name and musical echoes of an old Monkees song?
Context: Ariel Rechtshaid (born March 23, 1979) is an American record producer, audio engineer, mixing engineer, multi-instrumentalist, and songwriter.  His production, songwriting, and mixing credits include Brandon Flowers, HAIM, Vampire Weekend, Madonna, Tobias Jesso Jr., Usher, Adele, Cass McCombs, Solange Knowles, Murs, Sky Ferreira, We Are Scientists, Kylie Minogue, Glasser, Alex Clare, and Major Lazer.  Rechtshaid co-wrote and produced Usher's 2012 single, "Climax", which won the 2013 Grammy Award for Best R&B Performance.  Rechtshaid was nominated for the 2014 Grammy Award for Producer of the Year and won a Grammy for his production on the Vampire Weekend album "Modern Vampires of the City".  He also produced the "Billboard" Hot 100 No. 1-charting single "Hey There Delilah" by the Plain White T's in 2007.  Rechtshaid is the former lead singer and guitarist of the ska/pop-punk band The Hippos and the bassist and producer of indie folk-rock group Foreign Born. Vampire Weekend is the debut studio album by the American indie rock band Vampire Weekend, released in January 2008 on XL Recordings.  The album was produced by band member Rostam Batmanglij, with mixing assistance from Jeff Curtin and Shane Stoneback. "Mistadobalina" is a song performed by Del Tha Funky Homosapien from the 1991 album "I Wish My Brother George Was Here".  The line "Mr. Dobalina, Mr. Bob Dobalina" was sampled from the 1967 Monkees song "Zilch". "Giving Up the Gun" is the second single from Vampire Weekend's second album "Contra".  The song was originally performed by L'Homme Run, a comedic rap duo that featured Vampire Weekend vocalist Ezra Koenig.  The video was released February 19, 2010.  Koenig got the idea for the song from Noel Perrin's 1979 book titled "Giving Up the Gun" given to him by his father. Vampire Weekend is an American rock band from New York City, formed in 2006.  They are currently signed to XL Recordings.  The band consists of lead vocalist and guitarist Ezra Koenig, drummer and percussionist Chris Tomson and bassist and backing vocalist Chris Baio.  The band's first album "Vampire Weekend" (2008) – which included the singles "Mansard Roof", "A-Punk", "Oxford Comma", "Cape Cod Kwassa Kwassa" and "The Kids Don't Stand a Chance" – was acclaimed by critics for its world music influences.  Their following album, "Contra" (2010), was similarly acclaimed and garnered strong commercial success.  Their third studio album, "Modern Vampires of the City" (2013), won the group a Grammy Award for Best Alternative Music Album in 2014. "Last Train to Clarksville" was the debut single by The Monkees.  It was released August 16, 1966 and later included on the group's 1966 self-titled album, which was released on October 10, 1966.  The song, written by Tommy Boyce and Bobby Hart was recorded at RCA Victor Studio B in Hollywood on July 25, 1966 and was already on the Boss Hit Bounds on 17 August 1966.  The song topped the "Billboard" Hot 100 on November 5, 1966.  Lead vocals were performed by The Monkees' drummer Micky Dolenz.  "Last Train to Clarksville" was featured in seven episodes of the Monkees TV show; the most for any Monkees song. Modern Vampires of the City is the 2013 third studio album by American indie rock band Vampire Weekend.  The group began to write songs for the record during soundchecks on the supporting concert tour for their 2010 album "Contra".  After a period in which each member explored individual musical projects, they regrouped and continued working on "Modern Vampires of the City" in 2011.  With no deadline in mind, the band brought in an outside record producer for the first time, Ariel Rechtshaid, to record the album. Top Katz is the second studio album released by British duo PJ & Duncan, now better known as Ant & Dec.  The album was recorded during 1994 and 1995, and included the duo's cover of The Monkees song, "Stepping Stone".  The album was released in November 1995, peaking at #46 on the UK Albums Chart, and being certified Gold in the UK by the BPI. "Unbelievers" is a song by American indie pop band Vampire Weekend.  Written by the band's lead singer Ezra Koenig and multi-instrumentalist Rostam Batmanglij, and produced by Ariel Rechtshaid and Batmanglij, the song was released as the third single from their third studio album "Modern Vampires of the City" in August 2013.  The band initially premiered "Unbelievers" in a live performance on "Jimmy Kimmel Live" on October 31, 2012.  They also performed the song live on an episode of "Saturday Night Live" prior to it being released as a single. "Oxford Comma" is the third single by Vampire Weekend, released May 26, 2008, from their debut album, "Vampire Weekend".
Answer: Unbelievers