A Mexican popstar has been threatened by one of the country's most dangerous cartels.
Peso Pluma took to the stage on Sunday (10 September) as he drew the curtain on a two-day festival in Mexico City, breaking into his hit song 'J.G.L'.
The initials are a reference to drug lord Joaquin Guzman Loera, otherwise known as El Chapo.
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Loera was once the leader of the Sinaloa Cartel, heading up one of the biggest and most feared drug syndicates in the world.
He escaped from prison in 2015 before being captured a year later after a huge manhunt, with him now serving a life sentence at ADX Florence in Colorado.
El Chapo's wife was released from prison this week after serving half of her three-year sentence for helping him escape.
But now, Pluma's tune 'Siempre Pendientes' - 'Always Ready' - seems to have landed him in some deep water with El Chapo's connections.
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The tune has been streamed hundreds of millions of times on Spotify and is sung in a first-person style, detailing the former gangster's life.
'I take care of the plaza of señor Guzmán', a line from the chorus goes.
However, just a couple of days after his performance, four narcomantas - signs left by cartels - were found around Tijuana.
The messages ordered Pluma to cancel an upcoming gig, which he's set to perform next month (14 October).
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Signed 'CJNG' (Jalisco New Generation Cartel), it reads: "This goes to Peso Pluma; refrain from presenting yourself on October 14 because it will be your last show due to your disrespect and loose tongue.
"You show up, and we are going to (break you)."
As well as 'Siempre Pendiente', Pluma also sang about El Chapo's son, Iván Archivaldo Guzmán - who it's said is now the leader of his family's faction of the Sinaloa Cartel - during the concert last weekend.
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In the song, titled 'El Gavilán', he refers to the former drug lord's son as 'Don Iván'.
According to TMZ, Pluma has postponed several of his upcoming shows, though it's not clear why.
His next two concerts are scheduled to take place at the Reno Events Center in Reno on 28 September and then in Chula Vista, California at the North Island Credit Union Amphitheatre, two days later.
According to reports, an individual was arrested for allegedly leaving one of the narcomantas.
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Peso Pluma has yet to comment publicly on the messages, however.