J Hus, real name Momodou Jallow, was jailed for eight months in December after being caught carrying a knife after police stopped a car near Westfield in Stratford.
However, on Friday night the award-winning musician took to the stage with Canadian artist Drake after less than four months behind bars.
Welcoming Jallow to the stage, Drake said: "So if anybody's sitting down right now I need you to stand up, cause we about to celebrate one of our brothers tonight. I'm ready if you're ready, let's go."
After this, a spotlight beamed on Jallow, who walked down the stage to embrace Drake and perform.
He shouted to the crowd "fresh home baby, fresh home".
Drake then let up the stage to Jallow who performed his track Did You See.
The words "welcome home" were emblazoned across the stage.
At sentencing in December, Jallow said in a letter read to the court: "My decision to carry a weapon was careless, ill-advised and utterly stupid.
"Being a public figure that many look up to, I simply should have known better."
Jallow won best song at the Mobo awards in 2017 and is a three time Brit award nominee.
After the performance on Friday, Drake wrote on Instagram: "Done a lot of shows had a lot of moments but tonight was just a different energy we were truly all so happy to see this brudda fwd home cause we know what happens next!!!"
The message was shared alongside a photo of the pair hugging in front of the crowds.
