You may have read or heard the rumours about a big charity show taking place in Cardiff at the end of January. Now the first official details have been confirmed.
Artists already taking part include The Strokes, The Darkness and Super Furrie Animals, with many more names to be added over the next month.
'The One Earth Concert' will take place at the Millennium Stadium on Saturday January 28 and is in support of a global campaign to tackle environmental change.
Ten acts are to be announced for the show, which will be broadcast by the BBC.
The event's aim is to convert one million European households to renewable energy as part of a not-for-profit, non-political, ethical initiative (CCN), with any proceeds going to the UK-based charitable organization One Earth Trust.
Bands will play for between 20 and 40 minutes. In between the sets "worldwide known celebrities and dignitaries will encourage the public to switch to renewable energy, getting their message across through video and films".
Michael Mathres, co-founder of Climate Change Now, said: "People are genuinely concerned about the effects of climate change, but don't know how easy it is to make a big difference. The concert will focus attention on the part we can all play in tackling climate change. One Earth's purpose is to use the power of popular culture to inspire, communicate and drive positive social and environmental change and we have chosen the Millennium Stadium and this event as the ideal starting point for our campaign."
Tickets for the concert are £40 and are available from
Oneearthconcert.com
The Strokes are thought to be so keen to help that they have signed up to perform, despite having a show in Doncaster the same night, the band will fly from Cardiff immediately after performing in order to fulfill both commitments.