Christina Aguilera is the latest pop hit machine to step into the legal ring with a former manager.

Aguilera filed suit against her former manager, Steven Kurtz, on Friday in Los Angeles claiming fraud and breach of fiduciary duty. In the suit, Aguilera claims that Kurtz (who assumed the reigns of the singer's career when she was 17-years-old) used "improper, undue and inappropriate" influence over Aguilera's professional activities.

Aguilera wants to void her contract with Kurtz, and has recently signed on with Don Henley's longtime manager, Irving Azoff.

As of presstime, neither Kurtz nor Azoff could be reached for comment.

The news comes less than a week after fellow teen pop purveyors 98 Degrees founds themselves in a legal tussle with their former management team. That suit finds Top 40 Entertainment seeking $25 million and claiming that Top 40 turned the group from unpolished upstarts to a professional operation, and that the organization

was then unceremoniously dumped by 98 Degrees (see [article id="1432672"]"98 Degrees Sued By Former Managers"[/article]).