Kanye West has been accused of using parts of an obscure song without permission on his hit 2005 single "Gold Digger," and now he's being sued for millions of dollars according to TMZ.com.

Trena Steward and Lorenzo Pryor filed a copyright infringement suit in Los Angeles on Friday, claiming that the hip-hop star use parts of their late father David Pryor's single, "Bumpin' Bus Stop," which was recorded by Pryor and his band Thunder & Lightning in 1974, and are now seeking damages over not being credited.

The plaintiffs, who each own 1/4 of the rights to the song, claim that West used 13 seconds of it in the background of "Gold Digger," and they've asked that the court block future sales of the song.

"Gold Digger" features actor/singer Jamie Foxx and was the second single released of West's sophomore album, "Late Registration." The song reached number-one on the Billboard Charts on September 6, 2005.

The song also features clips from the Ray Charles classic, "I Got A Woman" also, hence the inclusion of Foxx -- who played the late singer in 2004 biopic "Ray."

Jean Catuffe, PacificCoastNews.com; PRN / PRPhotos.com