After four years of apprenticeship under Kanye West's G.O.O.D. Music label, Big Sean is finally seeing his dreams come true with his debut LP 'Finally Famous.' His anthemic hit single, 'My Last' (featuring Chris Brown), is a chart-topping success and now the Detroit rhyme-slinger is enjoying the fruits of his labor.

But it's hard to believe that Big Sean initially didn't like the No I.D. produced track, which samples New Edition's 1988 ballad 'Can You Stand the Rain.'

"At first, I didn't even want to do the song," he tells Billboard. "[NO I.D.] said, 'Do you want to be a mixtape rapper forever, or do you want to make a song that people can really live to?'"

Thankfully, he chose the latter, and now he's making big moves in the rap game. This summer, Sean will rock the stage alongside Wiz Kahalifa on his Rolling Papers tour. In addition, the always-fashionable rapper is working on designing clothes with streetwear brand Diamond Supply Co. and with avant-garde designer Taz Arnold.

As for other rappers who bite his lyrical flow known as "hashtag rap," Big Sean only sees it as a compliment rather than a nuisance. "People always ask me, 'Are you mad that everybody took that style or that you didn't get the credit due?'" he says. "But I feel like that just goes to show me how far I can go in the rap game … I already made history."

Watch the Big Sean 'My Last' Video Feat. Chris Brown