Chas & Dave (often billed as Chas 'n' Dave) are an English pop rock duo, most notable as creators and performers of a musical style labelled "rockney", which mixes "pub singalong, music-hall humour, boogie-woogie piano and pre-Beatles rock 'n' roll". For a time, "Rockney" was also the name of their record label, and they achieved several British chart hits, their major breakthrough being "Gertcha" in 1979, which peaked at #20 and was the first of eight Top 40 hit singles the duo played on. The act has also enjoyed nine best-selling albums. It was announced in September 2009 that the pair would no longer be working together as Dave Peacock planned to retire from the band following the recent death of his wife. However, in 2010 the band announced a final tour in 2011.