Rap: /rap/ : noun:
a type of popular music of US black origin in which words are recited rapidly and rhythmically over a prerecorded, typically electronic instrumental backing.
"the label specializes in rap and modern soul"
Definition from: Oxford Languages
MC: /ˌem ˈsē/ : verb
gerund or present participle: MCing
perform as an MC.
"he's MC'd at all of our parties"
Definition from: Oxford Languages