1/ Go to the webpage https://stats.wikimedia.org/v2/#/fr.wikipedia.org/reading/top-viewed-articles
2/ scroll to the data "290,226 Johnny Hallyday"
Issue : this data is *wrong*.
See http://www.zdnet.fr/blogs/l-esprit-libre/johnny-hallyday-a-allume-le-feu-dans-wikipedia-39861594.htm or https://tools.wmflabs.org/pageviews/?project=fr.wikipedia.org&platform=all-access&agent=user&start=2017-11-21&end=2017-12-13&pages=Johnny_Hallyday
-> I think data in Wikistats tool is not real-time or daily updated.