Why just call out Tamar? This has been happening for a long time. I remember Roc-a-fella records sending their street teams in to record stores to buy all of the copies on release date. So you have the record label, the artists, and also the volunteers and employees buying music on the first day. People aren't buying music as much anymore so it's still happening. Who needs to buy it on the first week? Who needs to buy it at all when you can download it for free?