Foxnews argues that astronomers have been deaf so far but with LIGO and LISA, they may detect the songs sung by cosmic superstrings: :-)
The expected music is 10-20 octaves below the usual pop-music hits. Fair and balanced. We report, you decide. :-)
There are interesting people mentioned in the article but let me still recommend this 2004 review by Polchinski:
Unlike our friends in Foxnews, Joe Polchinski doesn't confuse cosmic superstrings with more general cosmic strings - thin tubes filled with the primordial vacuum. ;-)