Collins's look in the original -- very late 1950s, oddly like stuff Collins herself wore on TV
I saw the original Follies well into its run and Collins wore the same blue dress for Losing My Mind. It seemed a little out of place for her to be dressed like Susie Homemaker during the follies segment. Others have told me she wore the Jean Harlow gown. I've see a photo of her in that and also sporting a platinum blonde wig.