Jay and Kanye, 41, have had a turbulent relationship for a number of years, even though they collaborated on the 'Watch the Throne' album in 2011.
And, speaking earlier this year, Jay admitted they were taking a break from each other.
He said during an interview with David Letterman: "That's my brother.
"We're beyond friends. Really, like literally, my little brother is Kanye, and like your little brother, things happen sometimes ... Do you have siblings? You guys ever have a falling out? It's like that. That's your sibling forever.
"We don't come from the same mom and dad, but I watched Kanye without an album. The thing I respect about him is he is the same person who interrupted our studio session, stood on the table and started rapping.'
"We were like, 'Could you please get down?' He was like, 'No! I am the saviour of Chicago!' He didn't even have a record."