Lady Gaga facing lawsuit over 'Teeth' song

Riley, who was a member of 1990s hip-hop group Blackstreet, has filed a lawsuit against the 27-year-old pop star, claiming he hasn't received any of the payments he is owed after the song was included in her smash hit 'The Fame Monster' EP (extended play).

Lady Gaga

The 46-year-old says he was promised 25 per cent of the writing fees for the song but hasn't been paid at all, and he is now seeking $500,000 as well as punitive damages, reports a website.

Gaga's 'Fame Monster' EP, which was released after her debut album 'The Fame', is credited with establishing her as one of the most popular music artists today. It also features hit songs such as 'Telephone', 'Bad romance' and 'Alejandro'.u00a0