The past few days the leaked tracks off the new Drake and Rihanna albums have served as pretty much my exclusive daily soundtrack. But this duet between them - the title track off Drake's "Take Care," which is out tomorrow  - might just take the cake. Catchy, moody, and oozing vulnerability, it works as a sweeter, less carnal sibling to their previous - and equally awesome - teaming "What's My Name." Take a few listens and then expect yourself to never stop: