Christina Aguilera to Join Twitter for 'The Voice'
Christina Aguilera to Join Twitter for 'The Voice'

In the latest instance of bad news for Christina Aguilera, a new lawsuit filed against Sony Music reportedly claims that the label hasn't paid for a sample used in the singer's Grammy-winning 2006 hit, "Ain't No Other Man."

"Ain't No Other Man," which was produced by hip-hop stalwart DJ Premier and reached No. 8 on the Billboard Hot 100, utilized a sample of the 1968 tune "Hippy Skippy Moon Strut," by Dave Cortez & the Moon People. According to TMZ, publishing company TufAmerica purchased the exclusive rights to "Moon Strut" in 2004, but Sony Music made a deal with Codigo Music and the Clyde Otis Music Group to sample the song.

In a federal lawsuit filed in New York, TufAmerica is allegedly asking for Sony to void the other publishing companies' claims on the song, as well as for punitive damages. TufAmerica could not be reached for comment at press time.

Although the lawsuit does not directly affect Aguilera, it continues a month of negative press for the singer, who was arrested for public intoxication on Mar. 1.

On a more positive note, Aguilera was added as the third coach on NBC's upcoming singing competition series "The Voice" last week, joining Cee Lo Green and Maroon 5's Adam Levine when the show premieres Apr. 26.