Drake sues his label, UMG, saying ‘Not Like Us’ is defamatory Photo by Prince Williams/WireimageDrake’s ongoing legal battle with his label, Universal Music Group, has escalated. The artist filed a lawsuit in federal court today, accusing UMG of harming his reputation and endangering him for profit. The suit stems from the diss track “Not Like Us” by Kendrick Lamar, another UMG artist. Drake’s legal compla…