London shared 2-year-old son Kross with Hussle, and Hussle also had a 7-year-old daughter, Emani, from a previous relationship. Kross and Emani appeared alongside Khalil Kimble and London's son from her previous relationship with Lil Wayne, 9-year-old Kameron.
Kameron ended up stealing the show, telling a story of a dream he had in which Hussle appeared.
"On the night of April 2, I had a dream that I was in paradise, and I was playing in the ocean water when Ermias appeared," he said, referring to the late rapper's real name, Ermias Asghedom. "He said, 'What up, Killa?' because that was my nickname ... I turned around and I held his hand and I gave him a hug ... It was still cool, I guess ... Ermias told me what it was like in paradise."
Kameron also said Hussle would always tell him "respect" at the window, and led the crowd to say "respect" on the count of three.
Emani, on the other hand, was shy and didn't speak onstage. Meanwhile, Kross, who was held by London, grabbed the mic and adorably made sounds.
"Give the kids some love, they're a little nervous," London said, who wore all white and appeared somber throughout the heartbreaking tribute.