Even though his sophomore album, "Take Care" is getting ready to hit stores next week, Toronto-born rapper Drake already has his sights set on his next project.  According to XXL Magazine, the rapper isteaming up with Rick Ross for a new mixtape titled "Y.O.L.O" (You Only Live Once).  The two artists have been working on the mixtape for weeks, Drake said, although Rick Ross' health concerns have hindered the process some.  In the meantime, the two artists also collaborated on each other's solo albums, with Ross helping out on "Lord Knows," one of several tracks from "Take Care" that have leaked prior to the set's release next Tuesday.