What makes Cousins by Vampire Weekend notable?

'Cousins' reached number 15 on the Billboard Alternative Songs chart, showcasing the band's growing commercial appeal. The track received critical acclaim for its catchy composition and was pivotal in establishing Vampire Weekend as a significant force in the indie rock scene during this era. Released on November 17, 2009, 'Cousins' was a lead single from Vampire Weekend's second album, 'Contra'. This period marked the band's transition to mainstream success following their self-titled debut in 2008, solidifying their place in alternative rock with a more refined sound and increased production value.