Skype is to begin offering music ringtones from big-name artists such as Madonna and Green Day, thanks to an agreement with Warner Music Group. Skype, which has an estimated 74m registered users, currently markets an array of generic musical ringtones but WMG will provide Skype with master ringtones from a major music company.

Skype’s online store will feature ringtones of Madonna’s singles "Hung Up," "Push," and "Sorry," from the Material Girl’s latest album, Confessions on a Dance Floor. The section will also feature ringtones from old Madonna hits such as "Like a Virgin" and "Vogue."