Jack White refused to confirm or deny whether he wrote a song with his mentor, Bob Dylan.

In a new interview with Rolling Stone, the Raconteurs rocker discusses his relationship with Dylan. “He’s been an incredible mentor to me, and a good friend, too,” White said. “I’m lucky to even have a conversation with him. Everything else has been icing on the cake.”

When prompted to reveal whether they collaborated together, he said, “I cannot tell you that. I wish I could tell you, but I cannot.”

Read the full story on Rolling Stone.