| Record Company | Number | Song titles | Remarks |
Columbia
  | 4-45260 | Rock and Roll Hoochie Koo / 21st Century Man | Red Label |
| 4-45260 | 21st Century Man | White Label Mono Radio Station Copy |
| 4-45260 | 21st Century Man | Blue Label STEREO version of 21st Century Man, noticable better then the mono versions |
| 4-45260 | 21st Century Man | Promo, collector's value around USD 8 |