Most single releases of "Mama's Pearl" had "Darling Dear" as the B-side. But a few of them opted for something different.
Spain and Argentina both used "Goin' Back to Indiana," a strong cut from the Third Album that was issued as an A-side in many other European and South American countries.
Japan offered an interesting alternative with "Oh, How Happy," another great LP cut from the Third Album. This is in keeping with most other Jackson 5 B-sides that featured Jermaine's lead vocals on a slower tempo song.
The most unusual choice came from Turkey:
When you don't understand the lyrics, I guess it doesn't much matter what the song's about.