Aiko" (歌え！Aiko, Utae!
Aiko) is a radio segment in Aiko's radio program Aiko's @llnightnippon.com, which aired from 1999 until 2003.
When musical guests were invited to the program, Aiko would play the piano and cover the guests'—or others'—songs; sometimes, she sang her own songs with her guests.
Rarely, Aiko would improvise a short song with a guest.
Unless indicated, all songs are covered by Aiko.