for me," she wrote. "I could barely keep myself from crying." She apologized for the performance, during which she was joined by her "MTV Unplugged" duet partner Trey Lorenz. "I'm sorry that I wasn't able to pull it together and really do it right, but I was literally choked up when I saw him there in front of me," she tweeted. "One thing I know is, we will never really have to say goodbye to MJ. His legacy lives on through his music and the millions of people he inspired with his ...