What happens to one hit wonders

Background: Spanish artists looking to make it outside of Spain naturally head west to Latin America and the US in search of fame and fortune; few make it big here, although there are exceptions, like Enrique Iglesias. And then there's the kind of Spanish novelty dance song, complete with an easy-to-do routine, that has no respect for geography and becomes a hit in seemingly every country in the world. In the 1990s it was Los del Río's Macarena; in the 2000s we had The Ketchup Song about a mysterious man called Diego by Las Ketchup, a family girl group put together by flamenco record producer Manuel 'Queco' Ruiz. Different versions (Spanish, 'Spanglish' and Portuguese) went to No.1 in 27 countries, including the UK, although the nonsensical chorus was the same on all versions. Or perhaps it wasn't nonsensical. At the time, a controversy blew up about the chorus and the song's Spanish title, Aserejé, which were thought to reference Satan. We kid you not.

What happened: Off the back of the success of The Ketchup Song, Las Ketchup's debut album, Hijas del Tomate, was a hit (especially in Finland, of all places), but their second album, 2006's Un Blodymary, failed. The group sang the title track from the album as Spain's entry at the 2006 Eurovision Song Contest (it came 21st) and, although they haven't released any new material since then, they still tour.