[susan53]

Have you heard... is correct. 2 would not be logical as this form (the second form of the verb) expresses an event which is distanced from the "here and now" - in this case confined to the past.

have + past participle on the other hand expresses and event which is relevant to both past and present - in this case, a past event which has a result in the present. If I "heard" about something in the past, the result is that I "know" about it now. And in this context the present result is the focus of the speaker's attention, not the moment in the past when the event happened. Compare :

Did you hear that explosion this morning? - I'm interested in something which happened a while ago and is no longer current.

Have you heard the new album by Sting? - I'm interested in what the listener thinks about the album, ie her present opinion, and not the moment in the past when she first turned the CD on.