The five members of One Direction have racked up a £5 million fortune each in the last year, and combined earnings of £25m.
Harry Styles and co, who were put together on 'The X Factor', stormed the United States in 2012 with their debut album 'Up All Night'.
But they still have a way to go before they catch Adele, who tops the Young Music Rich List with a fortune of £30 million.
The singer made £10 million in the last year despite taking much of it off to recover from a throat operation and have a baby, according to researchers from the Sunday Times Rich List.
Cheryl Cole's fortune is estimated at £14 million, while Leona Lewis and Katie Melua are both worth £12 million.
Florence Welch is worth £9 million.
New entries to the list of music millionaires aged 30 and under include Emeli Sande and Ed Sheeran, who are each worth £5 million.
The top 10 in full:
8= Jonathan 'JB' Gill (2013 wealth: £6m)
8= Duffy (2013 wealth: £6m)
8= Nadine Coyle (2013 wealth: £6m)
6= Lily Allen (2013 wealth: £8m)
6= Jessie J (2013 wealth: £8m)
6= Charlotte Church (2013 wealth: £8m)
5. Florence Welch (2013 wealth: £9m)
3 = Katie Melua (2013 wealth: £12m)
3= Leona Lewis (2013 wealth: £12m)
2. Cheryl Cole (2013 wealth: £14m)
1. Adele (2013 wealth: £30m)