Motony, I'm convinced your observations about the photo nailed it right off the bat. In addition to the blonde hair that was so-Mary when she started at Motown, BYE BYE BABY was her first single there, circa 1960, when she was 17, and she appears very young in the suitcase-photo. Perhaps the shot was intended as a BBB sleeve at one point or possibly a promo. Mary returned to being a brunette while still at Motown and for a considerable time afterwards, as well. But her inner-blonde continued to call to her, as it did here in '82:

http://www.youtube.com/watch?v=tOaxc4LveBo