Queen of Charts?
I don't think anyone is King or Queen of charts currently. So many established artists/acts are having singles and albums that flop in the last 3 years. E.g. Nelly Furtado, No Doubt, Kellis,
With reference to Madonna, her last album MDNA (that was released in the time span since 2099 ) was number 1 in many countries and grossed the largest tour by a female since 2009. So her legacy continues. However, the lead single GMAYL, in the UK suffered from a chart non count regulation and while sales should have ensure a top 10 hit, many sales were deemed ineligible due to chart rules. It was the second and third single release that perhaps was more alarming as they didn't chart high or even top 40. This is similar to many other established artists in the current climate e.g. Kylie , Lady Gaga (GUY - 3rd single).
These are all artists who have good early week album sales and early demand. It seems single sales for album selling artists are clearly affected. Especially when they are established an ignored by radio stations playlists. It is currently a challenging place for established artists. Longevity of an artist may be harder to achieve among a download generation of albums and selective radio playlists.
However, the real money in music is no longer in the release of singles and albums. It is in touring.
Have a look at the highest grossing tours - makes for very interesting reading
http://en.wikipedia.org/wiki/List_of..._concert_tours
It would seem the kings of the charts currently, are One Direction. As their last tour has a huge money gross and they have had album and singles success world wide in the last 3 years too. Quite a surprise.