NEW YORK, NY - AUGUST 20:  21 Savage attends the 2018 MTV Video Music Awards at Radio City Music Hall on August 20, 2018 in New York City.  (Photo by Jamie McCarthy/Getty Images)
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(CNN) —  

When the Grammys kick off Sunday night, there will be one notable absence.

Rapper 21 Savage, who is nominated for two awards, including the coveted record of the year honors, will miss the gala’s glitz and glam. He instead will be sitting in a detention facility, where he awaits immigration proceedings that will determine if the British-born rapper can stay in the country.

He was scheduled to perform, publicist Tammy Brook told CNN, and Rolling Stone magazine spoke to a source who said 21 would take the stage with Post Malone to perform their hit, “Rockstar.” The song earned two Grammy noms.

Though he has been the subject of worldwide headlines since authorities announced before the Super Bowl that he’d been arrested and was being held pending deportation proceedings, he rose to fame after establishing himself as a talented rhymesmith in Atlanta’s robust hip-hop scene.

21 Savage and Post Malone appear at the MTV Video Music Awards in August.
ANGELA WEISS/AFP/Getty Images
21 Savage and Post Malone appear at the MTV Video Music Awards in August.

He has long touted his Atlanta bona fides, so when Immigration and Customs Enforcement said 21 was British and had overstayed his visa, fans were caught off guard.

Before collaborating with Post Malone – and long before his second album topped the Billboard 200 – 21 shot into hip-hop’s collective conscience in 2016 with two words: “Issa Knife.”

It was in that moment – nonchalantly discussing with VladTV the tattoo of a knife that rests between his eyes – that 21 became celebrated as one of the most authentic rappers in the industry.

The phrase was repeated from the city to the suburbs, made into memes and ushered the rapper toward mainstream stardom. He’d go on to name his debut studio production “Issa Album.”

The face tattoo was an homage to a friend who was murdered. It was as much a tribute to his fallen fellow gang member as it was a symbol of what he represented to hip-hop: a young rapper with a raw, rough but real story of growing up in Atlanta’s drug-dealing areas, known as traps.

’That’s where you from, man’

The internet was not kind after 21’s arrest, and a parade of Twitter memes ensued.

One stated he wrote his rhymes with a feather quill, and another quipped that when he rapped about having shooters, he wasn’t talking about fellow gangbangers, but rather, British redcoats.

“Issa Joke” one opined about 21’s rap career. “+44 Savage,” another user poked fun, employing the United Kingdom’s international calling code.

“Englanddd?” another Twitter user wrote mockingly. “ATL streets done with.”

In an industry where an artist’s credibility and success is often defined by how authentic their struggle was growing up, 21 was dragged and roasted. An ICE spokesperson went so far as to say 21’s “whole public persona is false.”

Those who know him, however, were furious at the suggestion and quick to defend him.

02:02 - Source: CNN
21 Savage speaks out for the first time since arrest

“I don’t know what the world done came to,” Duct Tape Entertainment CEO Big Bank pondered aloud in one Instagram post. “When did it become funny to laugh at a n***a who get locked up?”

“You talking about where a n***a born at? That s**t don’t matter, n***a. Wherever you bust your gun at, wherever you got the game at, that’s where you from, man,” Big Bank said in a video post.

“Savage Zone 6 n***a for life,” he added, referring to the Atlanta Police Department’s designated Zone 6 – home to the careers of Gucci Mane, Childish Gambino and 21’s Epic Records labelmate, Future.

5 things you may not know about 21 Savage

Big Bank’s response to the internet’s insults was a microcosm of how hip-hop came to 21’s defense. To them, none of what the world was saying about 21 seemed to matter.

CNN’s attempts to reach 21’s family by phone were unsuccessful. Another effort – to join 21’s friends for a tour of the rough-and-tumble neighborhood in which the rapper grew up – fell through when his friends declined to escort a reporter into the area, saying, “The situation was too hot.”

Will he be able to stay in the country?

21’s birth certificate says he was born in East London to British parents. He was brought to the United States at age 7 and in 2005 left before returning a month later, according to his immigration lawyer, Charles Kuck.

In 2006, 21’s parents failed to renew his visa. He’s been living in the United States illegally ever since, according to immigration officials.

While his publicists say they have been working on his immigration status for at least two years, the majority of people found out about his international roots on Super Bowl Sunday.

For many, the timing of his arrest seems suspicious.

“There’s a lot of pieces that lead you to believe this wasn’t an accident,” said Anastasia Tonello, president of the American Immigration Lawyers Association. “This could be a nice case for the government to show that they are tough on immigration.”

She continued, “What I find very interesting in his case is that he has deferred action. His application for a U-Visa defers any action on him based on his application. Typically someone like that, ICE would not actively look to deport him. ICE would need to request to put him in removal proceedings.”

Authorities announced 21 Savage's arrest before the Super Bowl in Atlanta.
Fulton County Police
Authorities announced 21 Savage's arrest before the Super Bowl in Atlanta.

The visa application was filed in 2017, Kuck said. That’s four years after the rapper reportedly was shot six times during an incident in which his friend died.

A U-visa is available to those who have been the victims of a crime in the United States, have suffered physical or mental injury as a result of a crime and who are “helpful to law enforcement or government officials in the investigation or prosecution of criminal activity,” according to ICE.

21 wasn’t the target of the operation that landed him in the custody of immigration officials, a law enforcement source with knowledge of the arrest said.

It was another rapper, Young Nudy, who was the target of a criminal arrest, the source said, and 21 was seemingly caught in the middle.

In the days since he was taken into custody, rallies have been held in his name, petitions calling for his release have been widely circulated and Jay-Z is among the hip-hop luminaries who have backed him. But will it be enough to keep him from being deported?

“It depends if this is a means to perpetrate more fear and insecurity into immigrant communities by the Trump administration,” Tonello said. “If they want to use an example of him to frighten immigrant communities, they can do that.”

“Atlanta is one of the high rates of deportation. There are low rates for immigrants winning their case, but he has US citizen children, he was the victim of a crime, he has done philanthropy. … The judge will balance that.”

CNN’s Eliott C. McLaughlin contributed to this report.