In Touch has exclusively learned that Gwen Stefani is struggling to fill seats on her upcoming This Is What the Truth Feels Like tour.

“Her tour kicks off July 12 in Massachusetts and only 5,000 tickets have been sold in a venue that holds 18,000 — and that was after the huge promotion in which her tickets were being sold discounted on Groupon,” a source reveals.

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As of May 19, tons of seats were still available for Gwen’s show at the PNC Music Pavilion in Charlotte, N.C.

gwen stefani tour in touch

And an In Touch check of venues on her tour shows a huge number of unsold tickets. “In the ’90s, when she was with No Doubt, she’d sell out stadiums all the time,” the insider notes.

For more on Gwen Stefani, pick up the latest issue of In Touch, on newsstands now!