How many albumns has Gwen stefani sold?

Gwen Stefani has sold over 30 million albums worldwide as a solo artist and with her band No Doubt. Her solo albums include "Love. Angel. Music. Baby." and "The Sweet Escape," both of which achieved significant commercial success. Additionally, No Doubt's albums, such as "Tragic Kingdom" and "Rock Steady," have also contributed to her overall sales. Overall, her impact on the music industry has been substantial, both as a solo artist and a member of No Doubt.