The two have been grieving together since the 33-year-old actress's death in July.
The Detroit rapper admitted to being hurt that the track is associated with Rivera.
Riley honored her friend, and former co-star, on 'Jimmy Kimmel Live.'
The actress and mother was buried at Forrest Lawn Memorial Park.
The 33-year-old actress and mother was the vicitim of an accidental drowning.
The 33-year-old actress went missing last week following a boating day with her young son.