Fun Fun Fun: Rebecca Black May Take 'Friday' Producers to CourtRebecca Black may consider legal action against the producers of her song 'Friday.'

In a letter from their lawyer, Brian Schall, the 13-year-old singer and her mother Georgina Marquez Kelly are accusing the Los Angeles producers, Ark Music Factory, of copyright infringement and unlawful exploitation of her likeness and song on YouTube, iTunes, Amazon and Ark's website, according to a report in Rolling Stone. Black and her mom also allege that Ark never gave them master copies of the 'Friday' recording and sold an unauthorized ringtone of the song.

Ark has denied everything and said that they've all worked everything out. "I have met with Rebecca Black's mom and everything is fine," said Ark Music founder Patrice Wilson. "She will get the masters and the song. They can have it all."