Chief Keef announced he will hold a concert in Chicago on Friday to memorialize the toddler who was killed July 11 by a car fleeing a shooting that left his friend and rapper Capo dead, reports the Chicago Tribune.

The Chicago native will appear at the concert by hologram from a soundstage in Beverly Hills, California. He is unable to perform in person because of "outstanding warrants his legal team is addressing," according to his spokesman.

The concert will be free, but the rapper has asked concertgoers to make donations that will benefit the family of Dillan Harris, the 1-year-old boy who was killed when a car struck his stroller on the sidewalk in Chicago's Woodlawn neighborhood.

Police told the Chicago Tribune the car was driven by a suspect who was involved in the shooting death of Marvin Carr, also known as Chicago rapper Capo, 22. The child was struck about three miles from where Carr was shot.

A witness at the crash scene said he saw the car drive up on the sidewalk where a woman was pushing a baby stroller. The car "ran straight over" the stroller, Micah Ocana said.

"Baby wasn't even crying," Ocana said. "Just a lot of blood." He said the woman was not hit.

The toddler was pronounced dead at the University of Chicago Medicine Comer Children's Hospital, said officer Bari Lemmon, a spokeswoman for the Chicago Police Department.

Chief Keef, who lives in Los Angeles, "is just so heartbroken and appalled" by the deaths of Harris and his friend, said a spokesman for FilmOn Networks, which recently signed Keef to a two-album deal. He wanted to do something to help the child's family.

Keef, whose real name is Keith Cozart, also announced the formation of the Stop the Violence Now Foundation, which will aim to stop neighborhood crime.

Capo's murder is not the first to hit close to home for the "Yes" rapper. Mario Hess, Keef's cousin and a member of his Big Glo rap group, was shot and killed in West Englewood in April 2014.

Keef's recently released single "Ain't Missing You" is about Hess' death.