None of those groups is a household name, save for Soundgarden, which scored a No. 1 hit with the album "Superunknown" in 1994 and just this year embarked on a North American reunion tour after more than a decade apart.

CNN: Commentary: The roots of grunge run deep

Every other year, hundreds of African-American descendants of Hal Rand get together at a different location for a massive family reunion.

CNN: The story