For the story I'm currently working on, implicitly set in the UK, my muse requires me to name-drop three female celebrities as representing the onanistic fantasy objects of a teenage boy. The plot requires that one is local (ie UK-based) and the other two are very much non-local.
Bearing readability in mind, the celebrities should be world-renowned and expected to have a long shelf-life. 'Who is Taylor Swift?' is the sort of question I don't want readers to be asking in 5 or 10 years time, and also gives away one of the choices I'm considering.