Lily and Tony Allen for Roskilde

Pop princess Lily Allen has been added to the ever growing line-up for this summer's Roskilde.

The Danish festival also added to its eclectic mix of artists today with the confirmation of Afro-beat godfather Tony Allen.

The two Allen’s join an all star cast for the Danish bash which includes Coldplay, Oasis, Madness and Slipknot. Many more high calibre artists are also set to play.

Click here for the latest Roskilde line-up.

Roskilde Festival 2009 will take place at Roskilde, Denmark from 2-5 July.

Tickets are on sale now priced at £190 (plus booking fee).

Click here to browse and buy tickets for Roskilde 2009.

The festival is founded on the same ethos as Glastonbury in the UK. A strong environmental commitment goes hand in hand with a vast range of peripheral activities, perfectly complementing the musical stars that feature on the stages.