"Unglued" is a 1994 promo single from Stone Temple Pilots' second album Purple. It was performed live on the Late Show with David Letterman in December 1994. STP had appeared on Letterman twice before, to perform their songs "Wicked Garden" and "Vasoline", and would appear four more times. The song, like "Vasoline", is known for its highly distorted guitar intro and prominent bass. "Unglued" was only a minor hit for the band, but can still be heard on radio stations in the United States and remains a staple in their live shows. This was the last song Scott Weiland ever performed live in his lifetime, being the last song performed in his last ever concert on the 1st December, 2015 at the Adelaide Music Hall in Toronto.