Listen to The Medium: Act II: Who's there? Who's there? (Baba, Monica) online. The Medium: Act II: Who's there? Who's there? (Baba, Monica) is an English language song and is sung by Evelyn Keller. The Medium: Act II: Who's there? Who's there? (Baba, Monica), from the album Menotti: The Medium - The Telephone, was released in the year 2011. The duration of the song is 4:01. Download English songs online from JioSaavn.