Recorded live at Reading Festival in 1992, "Polly" captures Nirvana's raw energy and evolving sound during a pivotal moment in their career. The track features a driving rhythm section and Kurt Cobain's distinctive vocal delivery, showcasing the band's transition from grunge roots to a more polished yet still visceral rock style. Released on the official "Live At Reading [2009]" compilation, this recording serves as a testament to their live prowess and the enduring power of their music. The song remains a staple of their discography, reflecting the band's ability to deliver high-impact performances that defined an era of alternative rock.