By SHERI RADFORD
There’s no need to sing the blues when the Blue Man Group comes to town. This trio of bald, blue performers always brings on the laughs in provocative, difficult-to-define shows that push the boundaries of live theatre. What will they do next? Who knows, but it’s sure to be thought-provoking—and at least a little peculiar. Catch all the bizarre blueness Mar. 25 to 30 at the Queen Elizabeth Theatre.