"I can't stop crying over the sad news. I have always admired Michael Jackson. The world has lost one of the greats, but his music will live on forever! My heart goes out to his three children and other members of his family. God bless," via her publicist.
"I was so excited to see his show in London. We were going to be on tour in Europe at the same time and I was going to fly in to see him. He has been an inspiration throughout my entire life and I'm devastated he's gone!," via her publicist.
"A friend of Michael's for the last 35 years, I call on people around the world to pray for him and his family in the hour. I have known Michael since we were both teens, worked with him, marched for him, hosted him at our House of Justice headquarters in New York, and we joined together to eulogize our mutual idol, James Brown. I have known him at his high moments and his low moments and I know he would want us to pray for his family," via his publicist.
"Words cannot begin to express my heartfelt sorrow upon hearing the news of Michael Jackson's passing. I was blessed to be able to work with, and witness firsthand, his tremendous talent and growth through the years as he truly became an icon.
Today we have all lost a legend who has touched each of our lives through his music and showmanship over the past five decades.
To his family, the entire Jackson clan, and to all his adoring legions of fans throughout the world, my prayers and deepest condolences to all."
"We have lost an icon in our industry and my heartfelt condolences go out to his family and children in this hour of sorrow that they are now going through. He will live on in my memory and most definitely through the music he shared with so many," via her publicist.
"I knew Michael as a child and watched him grow over the years. Of all the thousands of entertainers I have worked with, Michael was THE most outstanding. Many have tried and will try to copy him, but his talent will never be matched," via his publicist.
"Music has lost a king, music has lost an icon, music has lost a friend. It's unbelievable, but we don't have any choice but to believe it," via The Los Angeles Times.
"Words can't begin to describe my sadness for the loss of Michael Jackson. I was honored and humbled to have the opportunity to perform with him several times and he had a profound influence on my career. Michael forever changed the world of music and entertainment and I will always remember him for his kind and sweet spirit," via his publicist.
"Michael Jackson was my inspiration. Love and blessings," via Twitter.
"Dazed in the studio. A major strand of our cultural DNA has left us. RIP MJ. I think we'll mourn his loss as well as the loss of ourselves as children listening to Thriller on the record player," via Twitter.
"NO OMG ... sending my love and prayers out to Michael and his family ... I feel sick," via Twitter.
"If it were not for Michael Jackson I would not be where or who I am today. His Music and Legacy will live on Forever. Prayers to the fam. R.I.P.," via Twitter.
"Death comes to all. But great achievements build a monument." He IS and WAS the greatest entertainer of all times...Peace to you brother," via Twitter.
"I have no words.. I loved Michael Jackson.. RIP..," via Twitter.