All three original members - Chyna Phillips, Carnie Wilson and Wendy Wilson - have reteamed for the jaunt.
Phillips reportedly sought treatment for anxiety in February following her half-sister Mackenzie Phillips's allegations of a sexual relationship with her father, John Phillips of The Mamas and the Papas.
The singer said that she is anxious to move on after seeking treatment.
"I'm thrilled that the Wilson Phillips family is coming back together again. We've known each other for more than 20 years. We're like family. I'm excited about working with the Wilson sisters again," she said.
The band are known for their 1990s hits 'Hold On', 'You're In Love', and 'Release Me'.
The tour kicks off in San Antonio, TX on Wednesday.
The group are working on new songs for an upcoming holiday album.