Until now the charts were largely based on sales of the CDs, tapes and occasional record bought by the music loving public.
Not any more. From Tuesday Music Week magazine will catalogue the best selling mobile phone ring tones for a regular fortnightly chart.
It follows a rapid growth in the market, as owners of the latest phones take advantage of the hi-tech wizardry in their pockets to download tunes to amuse themselves and irritate others.
So, are you in tune with all things mobile phone, or struggling to deal with those new fangled gadgets? Test yourself.