From 1970 until 1978 Chapman and Chinn scored a run of hit singles. From 1973 to 1974 alone the pair had 19 hits in the Top 40 of the UK Singles Chart, including five number ones. The pair's dominance of the charts in Britain, Germany, Scandinavia, Australia and New Zealand outlasted the decline of Glam rock, and waned in line with the fading fortunes of Smokie and Suzi Quatro. The success of the Chinnichap production partnership was challenged in the late 1980s by the Stock Aitken Waterman team.