LOS ANGELES — Usher and Chris Brown have canceled two more stops on their joint "R&B: Raymond & Brown" tour, adding Los Angeles and Miami to a growing list of scrapped shows as rumors of a backstage feud between the two stars refuse to go away.

Ticketmaster sent cancellation notices for the Nov. 16 show at SoFi Stadium in Inglewood and the Dec. 6 date at Miami's Hard Rock Stadium, according to Yahoo Entertainment. Those join previously canceled stops in Baltimore, Cincinnati, South Carolina and Indianapolis, which organizers attributed at the time to the touring crew needing rest after a run of sold-out stadium dates.

Where the rumors started

The feud chatter traces back to a reported "verbal argument" before the tour's November 5 show in Atlanta, first reported by TMZ. According to that account, Usher wanted to start the concert on time while Brown preferred to wait for fans still stuck in traffic — a disagreement that reportedly pushed the show back nearly three hours. At that Atlanta date and others since, fans have noticed the two headliners no longer perform together onstage, fueling further speculation.

NEITHER MAN HAS SAID THE WORD "FEUD" — BUT THE SCHEDULE KEEPS SHRINKING.

Brown appeared to wave off the rumors in an Instagram Stories post, and representatives for both artists have avoided confirming or denying a rift. One outlet reported that a separate Nov. 15 SoFi Stadium date remains on the books even as the Nov. 16 show was pulled — a detail that has only added to fan confusion about what's actually happening behind the scenes.

The business fallout

Each canceled date represents tens of thousands of lost ticket sales at stadium-size venues, and concert-industry watchers say promoters are now bracing for further scheduling shakeups as the tour heads into its final stretch. Consequence and TheGrio both note that six cities have now lost shows since the Atlanta incident, an unusually high number for a tour built around two of R&B's biggest draws.

What's next

The tour is still scheduled to wrap in Tampa on December 12, and neither Usher nor Brown has signaled plans to pull out entirely. Ticket holders for the canceled Los Angeles and Miami dates are being offered refunds, while fans holding tickets to the remaining stops are watching the Nov. 15 SoFi Stadium show closely as a test of whether the tour stabilizes — or loses more cities before it's done.