Take Care arrived in stores on November 15 and sold 631,000 copies on its first week, making it the second-biggest rap opening of 2011.
Drake recently confessed that he is nervous with how his fans and critics will react to his new album.
His Young Money boss Lil Wayne, whose Tha Carter IV album holds the biggest rap opening of 2011, has addressed the lower-than-predicted sales of Take Care.
Lil Wayne said: "As far as expectations, we don't have those around here. Expectations are a weakness in the music business because if you expect anything, 10 times out of 10 it's not gonna happen, so we don't have expectations around here.
"What we do expect is... to work very hard and we expect people to respect our hard work and our effort. Now as far going to buy the album, as far as going to get 750,000 copies, that's never a problem with us; that's never important to us."
While Drake's takes the number spot on the Billboard 200 chart, another Young Money member, Nicki Minaj, has been chosen as Billboard's 'Rising Star' of 2011.
Watch the music video of Drake's 'Headline' below: