For decades now, artists have been collaborating without ever having met, thanks to the wonders of studio technology. But there's nothing like the real thing — as Drake testified about his collaboration with Alicia Keys, "Un-thinkable (I'm Ready)," which will be featured on Keys' forthcoming Element of Freedom LP, due December 15.

"They reached out and she said she really wanted me to do something on her project," Drake revealed to Rap-Up.com. "But she wanted me to do me, not do an Alicia Keys record. And man, she gave me one of the best studio experiences of my life.

"I came in there and instead of being like, 'Here's the beat, get to work,' she was just like, 'Play me your favorite songs and lets battle,' " he continued. "It's almost like the transition from [listening to] great music to making a song — like, no one even noticed it, because she started playing the keys and I just started writing the melodies."

Drake seems to have no end of superlatives about the experience. "It's probably one of the best moments of my career," he said. "I love that song. We listen to it nonstop."

News of the collaboration surfaced last month when Keys' longtime producer, Kerry "Krucial" Brother, tweeted about the song, and it leaked onto the Internet last week.