Beyonce Sued for $7 million by Backup Singer.

Beyonce has been accused of stealing her hit song, XO, from a background singer.

The singer, Ahmad Lane, has now sued 33-year-old Beyonce and wants $7 million in damages, according to documents published on Saturday by Radar Online. 

In the ongoing case, Beyonce's lawyers have been working to dismiss the lawsuit, saying Ahmad's claims are 'vague and cryptic.'

Ahmad has alleged that he was the original writer of the song, which he titled XOXO.

Prior to Beyonce's release of her tune, XO, in late 2013, Ahmad said he gave a copy of XOXO to another background singer, Chrissy Collins.

She is then alleged to have passed on the song to Beyonce, who released it as the first single to her eponymous fifth studio album.

Filed in the United States District Court's Southern District of New York, the 59 pages of legal documents asked a judge to dismiss the suit altogether.

Released on December 16, 2013, XO was the first single (of five) from Beyonce - an album that eventually sold 5 million copies.

It was officially co-written and co-produced by Ryan Tedder, Terius 'The Dream' Nash, and Beyonce.