Lopez announced a tour to support her new album (and truly wild accompanying movie), "This Is Me … Now," earlier this year, but she wound up canceling a bunch of dates amid weak sales.

The rock duo The Black Keys scrapped a planned arena tour and are expected to announce a "revised" set of dates at smaller venues.

Coachella lagged this year, and there's been chatter about a variety of acts not hitting home runs sales-wise in some instances and locations, including Cardi B, Justin Timberlake, and Pink.

And sometimes, you can be humbled," said Jarred Arfa, the head of global music at Independent Artist Group, whose client roster includes Billy Joel, 50 Cent, and Metallica.

(They said Wallows is selling "well" without providing on-the-record specifics and pointed to public statements from the Black Keys and Lopez, the tours of which Live Nation all produced.)

Live Nation-Ticketmaster dominates the market, which critics — including the Department of Justice, which is suing the company over claims of anti-competitive practices — say stifles innovation, allows for unfair markups, and contributes to an overall negative experience for fans.

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