Atlanta pop star Usher and longtime friends of Michael Jackson, Martin Luther King III and his sister Bernice King have been added to the all-star guest list for the pop star’s memorial service set for Tuesday in Los Angeles.

They will join Atlanta music producer Jermaine Dupri and Jackson’s sister, Janet, who lives part-time here and was about to begin filming “Tyler Perry’s Why Did I Get Married Too?” in Atlanta at the time of her older brother’s death, who will also attend the Staples Center service set to begin at 1 p.m. Tuesday.

Atlanta singer-songwriter-producer Akon is also scheduled to be at the service as is former Buckhead resident and singer-songwriter John Mayer.