Gwen Stefani hires Aguilera's manager

Gwen Stefani and No Doubt have hired Christina Aguilera's manager.

The 44-year-old singer, who is set to replace the 'Beautiful' hitmaker on the upcoming seventh season of 'The Voice' USA later this year, as she is taking a break to focus on her second pregnancy, has signed a new management deal with Irving Azoff, who also represents the Eagles, Steely Dan and Van Halen.