Rapper Missy Elliott will be releasing a pair of new tracks next month, according to a Tweet from rapper/producer Timbaland, who performed with Elliott at last month's Hennessey "White Rabbit" launch event.  "oh snap yall my sista @MissyElliott is dropping her singles #9thinning and #triplethreat labor day weekend. watch it world we back!!!" Timbalabnd tweeted on Friday.  Check out some fan-filmed footage of the duo performing together at the Hennessey event below.