As you are know doubt aware, Whitney Houston's (live-streamed) funeral service was held today. And in addition to choir performances and words from her friends and family -- including Kevin Costner and Rev. Kim Burrell -- some of her musical friends took the stage, too. I
n particular, R. Kelly sang "I Look to You," Stevie Wonder did "Ribbon in the Sky," and Alicia Keys performed "Send Me an Angel." For everyone who missed out on the live stream or simply wants to relive the moving performances, you can watch those three singers' tributes to the late legendary singer below.