Shakespeare Theatre’s production of Love’s Labor’s Lost is, in a word, groovy. The theatre has taken Shakespeare’s comedy and given it a 1960s style-twist, and boy does it work. It’s not the first time that music has played a key role in the re-imagining of Love’s Labor’s Lost, which tells the tale of four men who have sworn off love for three years in order to concentrate austerely on their studies, only to be confronted…