premise: Raven-Symoné appears in Empire.
hypothesis: Raven-Symoné Christina Pearman ( [ ˈreɪ.vən _ sɪˈmoʊn ] born December 10 , 1985 ) , sometimes credited as Raven , is an American actress , singer , songwriter , television personality , and producer . In 2015 , Raven-Symoné joined the cast of the new hit primetime drama Empire in the recurring role of Olivia , the vengeful ex-wife of one of the main characters .