On July 15, 2009, Nine Inch Nails performed live in London, featuring a special guest appearance by Gary Numan for a rendition of his iconic song "Cars." This concert occurred during the band's "Wave Goodbye" tour, which marked the end of their extensive touring cycle for the album "The Slip," released in 2008. This album was notable for being made available as a free download and showcased Trent Reznor's commitment to exploring new ways of distributing music. The collaboration with Numan, a pioneer in electronic music, reflects Reznor's influence by and respect for pioneering artists, highlighting a generational link between the two musicians. This performance was significant as it underscored the theme of collaboration and connection within the evolving landscape of music.