He promises to continue that growth on his as-yet undated second album, which he says will be out "ASAP - no pun intended".
"I put out Ferg Forever so people could see my growth, because I feel like if I'd put out [my new album] without bridging the gap, it would go over people's heads. I can tell you that I've got a lot of good songs on there. I don't feel like it's a masterpiece yet - we're laying the foundations. This is the best piece of art that I've ever worked on in my life. I'm very confident about it." That confidence is serving him well - it's not just enticing new fans but also building Ferg a celebrity fan base.
Popular British model Cara Delevingne was persuaded to star in his recent video for Dope Walk after getting a shout out in the song's lyrics. And Ferg recently met his idol Missy Elliott when he joined Timbaland in the studio - and got a shout out from Jay Z.
"I saw Jay Z at Kanye West's fashion show. He said, 'I'm a fan, I love your music, you've got something, keep doing what you're doing'. It was cool. And meeting Missy was a dream come true for me."
Ferg freaked fans out at his last show here, emerging above the crowd in a parachute jacket and gas mask before delivering an explosive show. He's promising to deliver something different - but equally thrilling - as long as the crowd's up for it.
"I like to keep each show different," he says. "I test the crowd out every time I go out there."
Who: Trap rapper A$AP Ferg
Where and when: The Studio, tonight
