Acting is an activity in which a story is told by means of its enactment by an actor or actress who adopts a character in theater, television, film, radio, or any other medium that makes use of the mimetic mode. wikipedia.org

Video editing is the process of editing segments of motion video production footage, special effects and sound recordings in the post-production process. wikipedia.org

Voice acting is the art of providing voices for animated characters (including those in feature films, television programs, animated short films, and video games) and radio and audio dramas and comedy, as well as doing voice-overs in radio and television commercials, audio dramas, dubbed foreign

Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of both tonality and rhythm. wikipedia.org

Content creation is the contribution of information to any media and most especially to digital media for an end-user/audience in specific contexts. wikipedia.org

Digital video is a representation of moving visual images in the form of encoded digital data. wikipedia.org

Voice-over is a production technique where a voice, that is not part of the narrative (non-diegetic), is used in a radio, television production, filmmaking or other medium.

iMovie is a proprietary video editing software application which allows Mac, iPod Touch 4th generation, iPhone 4, iPhone 4S, and iPad 2 users to edit their own home movies. wikipedia.org