The consummate professional, Madonna went on with her Sticky & Sweet tour last night, after announcing that she was divorcing from Guy Ritchie. In Boston, the pop diva looked no worse for the wear and perhaps made only one mention of her ending marriage with the song, "Miles Away." As with her previous concerts, Madonna dedicated the song to the "emotionally retarded." She announced to the crowd, "You may know a few people like that. God knows I do." In an interview with Elle magazine earlier this year, Madonna revealed that the song was inspired by Guy and their long-distance relationship. "It's not easy. You have to work hard to make it work." But apparently, sometimes hard work isn't enough.