They were originally called Xero, which became Hybrid Theory, but then again was changed to Linkin Park. They made just one demo tape, which included the songs "Fuse", "Reading My Eyes", "Stick N' Move" and "Rhinestone", which didn't achieve wide recognition. After Mark Wakefield left to become the manager for Taproot the band hired new vocalist Chester Bennington, formerly of the band Grey Daze, and made the Hybrid Theory EP under the band name Hybrid Theory. A slightly modified version of the cover was shown in Linkin Park's Papercut Video.