"I do not rule out the possibility that No Doubt will gather again," said American pop star Gwen Stefani, a former member of the group, in an interview with radio station Apple Music 1.
She said nothing is ruled out, but she cannot predict what might happen in the future.
The band took a creative break in 2015.
"The expected gathering of No Doubt and holding concerts is an important issue, and I'm thinking about it. When you write new compositions, you remember everything you have done in music. Quite a long time has passed since the group's active work, although I do not know what will happen in the future. Do you understand what I am saying? I can not predict what will happen," said Gwen Stefani.