Big Sean has a “surprise” on deck. Following the success of last year’s album Dark Sky Paradise, the Detroit rapper has revealed that he’s gearing up to release a new project soon.

“It’s a lot of new music that’s done, but we’re just getting it right,” Sean told Real 92.3 at Sunday’s “Real Birthday Bash” in Inglewood, Calif. “It’s my best work so far. I feel like on my last album, that’s the most comfortable I’ve been. This one is taking that to another level. The concept is crazy. The song’s are crazy, and I’ve got a surprise, too. I’ve got a real surprise coming up soon.”

Beyond working on music and performing at the Los Angeles-based radio station concert, Sean Don has launched his #HealFlintsKids campaign to raise money for Flint’s water crisis in his native state, Michigan.

“What’s going on in Flint is tragic,” he explained. “It’s not a natural disaster though. It needs to be some blame placed on the people who deserve it. But we’re stepping in and doing what we can. Our goal was to raise $50,000. Now we’ve almost raised $100,000.

“It’s not just for water,” he added. “We’re not just donating water bottles. We’re helping kids get the proper care they need, see the proper doctors. My mom actually has experienced lead poisoning, to a degree. So, we knew how deep it is. The things my mom went through was real painful, real devastating, so we just want to make sure that they get the proper care, proper doctors, and attention, and the proper water.”