How many weeks did Prince's album "Purple Rain" spend at #1?

Prince knew that "Purple Rain" was such a perfect album that he looked at the rest of 1984 and decided he wanted it for himself, and then some. At 24 weeks, it was the longest run at No. 1 of any soundtrack in the 1980s. That's six solid months of Prince owning the record stores while everyone else fought for scraps. But when you're dealing with tracks like "When Doves Cry" that completely reimagined what pop music could sound like, the competition wasn't exactly fair. During his marathon run, he also joined Elvis Presley and the Beatles as the only artists to have the number-one album, single and film in the U.S. all at the same time.