Barbie in The Princess and the Pauper in the full-length version of "Written in Your Heart" has Anneliese and Erika sing "You and I will always be / celebrating life together / I know I have found a friend forevermore!".It's a duet between Fievel (a mouse) and Tiger (a good cat) about how they'd make good friends because they have a lot in common. Asteroid in Love's ending theme Yōzora is mainly about the importance of friends (or one friend) in the path to the Goal in Life.The second English CD features a song (not used on the show) called "Who Do You Think You Are?", a duet between Sailors Moon and Mars that plays up their status as Vitriolic Best Buds but emphasizes that they are still friends, no matter how much they argue.
"Call My Name (And I'll Be There)" was sung by Raye (Sailor Mars) in the episode "Raye's Day in the Spotlight," and "Only a Memory Away" was featured in "Sailor Mercury Moving On?", sung from the perspective of Amy as she prepares to leave Japan to study abroad, leaving the other Sailor Scouts behind.