Aretha Franklin has an album coming out on October 21st called "Aretha Franklin Sings the Great Diva Classics"...and it includes covers of songs by Etta James, Barbra Streisand and Gladys Knight, as well as more contemporary artists like Alicia Keys and Adele.
Someone took 71 different covers of Adele's 'Rolling in the Deep' and edited together clips from each of them so the finished product is the whole song.