Just Say Da was Sire Records' Volume 4 of Just Say Yes and was originally released on September 4, 1990 as a winter CD sampler.

It contained remixes and non-album tracks of artists on the label, most of which were considered new wave or modern rock (all would eventually fall under the genre alternative rock).

This was the first of the 'Just Say' themed albums to carry the Parental Advisory labeling.

[citation needed] It is volume four in the Just Say Yes series of promotional compilations, of which each title was a variation on the 'Just Say' theme: