LOS ANGELES -- Nipsey Hussle's legacy as a community activist, uniter, a doting father and a loving son were underscored at his public memorial service on Thursday, with deeply personal testimonies from those closest to the rapper, including his mother, who said she was at peace with the death of her son, whom she hailed as a "superhero."

"He had such beautiful energy," said Angelique Smith, dressed in all white, remembering her 33-year-old son, whose given name was Ermias Asghedom. Standing on stage with Hussle's father, Dawit Asghedom, in front of a capacity crowd of 21,000 at the Staples Center, Smith declared: "Ermias was a legacy."

Hussle's children and fiance, actress Lauren London, also appeared onstage to pay tribute to Hussle. London was with another woman and Kross, her 2-year-old son with Hussle; Hussle's daughter Emani Asghedom; another child and London's son with rapper Lil Wayne, Cameron Carter.

Cameron said days after Hussle died, he had a dream he saw the rapper.

"I realized Ermias told me what heaven was like. He told me it was paradise," Cameron said.

Cameron then told the audience that Hussle would look at him through the window at times and say "respect." Cameron then asked the crowd to say "respect" in unison, and they complied.

At the memorial, Father Thomas Uwal read a scripture in Tigrinya -- the native language in Eritrea, the African country where Hussle's father was from. He also spoke in English, saying: "Ermias was full of hope. Ermias full of life. Ermias was full of dreams."

Father Uwal spoke of Hussle being a "proud to be an Eritrean-American," later saying to the late rapper's family: "On behalf of all Eritreans ... we say our condolences to you."

The public memorial service kicked off by paying respect to Hussle the rapper, as songs from his latest Grammy-nominated album, "Victory Lap," filled the arena.

"Everybody put your hands in the air," the DJ said as one of Hussle's songs played. "It's a celebration."

Indeed, his mother, dressed in all white, danced in the aisle as R&B singer Marsha Ambrosius sang the Mariah Carey song "Fly Like a Bird" while fighting back tears. "This is for Nipsey, y'all" Ambrosius said before she started as she tried to gain her composure, sighing heavily.

But soon the focus was squarely on the person behind the persona. A montage of photos featuring the rapper from infancy, childhood and adulthood, with fellow rappers, his family and London, were shown to the crowd, set to Frank Sinatra's "My Way."

Anthony Hamilton invoked the spirit of a church service as he performed in Hussle's honour. Nation of Islam leader hailed Hussle's ability to bring different factions together. And blogger and media figure Karen Civil read a letter sent by former U.S. President Barack Obama.

"I've never meet Nipsey, but I've heard his music through my daughters, and after his passing I had the chance to learn more about his transformation and his community work. While most folks look at the Crenshaw neighbourhood where he grew up and only see gangs, bullets and despair, Nipsey saw potential. He saw hope. He saw a community that even through its flaws taught him to always keep going. He choice to invest in that community rather than to ignore it," the Obama letter read. "He set an example for young people to follow and is a legacy worth of celebration. I hope his memory inspires more good work in Crenshaw and communities like it. Michelle and I send our sympathies to Lauren, Emani, Kross and his while family and to all those who love Nipsey."

Hussle was slain last month in front of a store that he tried to use to empower his South Central neighbourhood. Most who filed in for the public memorial at arena Thursday were young adults, but ages ranged from small children to the elderly.

Books with an image of Hussle on the cover were handed out to service attendees. The book of nearly 100 pages contained numerous photos of Hussle with London, his children, and friends like Russell Westbrook and Snoop Dogg. It also had heartfelt messages from Rick Ross, The Game and LeBron James.

"I've never cried myself to sleep over any public figure before, but Nipsey's presence meant so much for our community," actress Issa Rae said in her message inside the book.

The memorial was being livestreamed on BET and BET News' Facebook page, among other outlets.

The hearse carrying Hussle's coffin was scheduled to after the funeral to go on a 25-mile lap through the city, including past the property where Hussle had planned to turn an aging strip mall into new businesses and affordable homes. Finally, it will arrive at a funeral home in the city's hard-scrabble Crenshaw district, where the rapper was born on Aug. 15, 1985.

Hussle was shot to death March 31 while standing outside The Marathon, his South Los Angeles clothing store, not far from where the rapper grew up. The store will be one of the places where Hussle's casket passes during the procession through South Los Angeles.

Eric R. Holder Jr., who has been charged with killing Hussle, has pleaded not guilty. Police have said Holder and Hussle had several interactions the day of the shooting and have described it as being the result of a personal dispute.

The rapper was a beloved figure for his philanthropic work that went well beyond the usual celebrity "giving back" ethos. Following his death, political and community leaders were as quick and effusive in their praise as his fellow hip-hop artists.

Hussle recently purchased the strip mall where The Marathon is located and planned to redevelop it, part of Hussle's broader ambitions to remake the neighbourhood where he grew up and attempt to break the cycle of gang life that lured him in when he was younger.

For a decade, Hussle released much sought-after mixtapes that he sold out of the trunk of his car, helping him create a buzz and gain respect from rap purists and his peers. His said his stage name, a play on the 1960s and '70s rhyming standup comic Nipsey Russell, was given to him as a teen by an older friend because he was such a go-getter -- always hustling.

He charged $100 for his 2013 mixtape "Crenshaw," scoring a cash and publicity coup when Jay-Z bought 100 copies for $10,000.

Last year he hit new heights with "Victory Lap," his critically acclaimed major-label debut album on Atlantic Records that made several critics' best-of lists. The album debuted at No. 4 on Billboard's 200 albums charts and earned him a Grammy nomination.

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Associated Press Writers Andrew Dalton, Amanda Myers and John Rogers contributed to this report.