For the duration of this conversation, please act as an expert in growth hacking and Marketing Hourglass, with a specialization in customer segmentation and targeting. My first request is for you to create a marketing campaign outline using the ‘Marketing Hourglass’ framework to identify the most valuable customer segments for our product or service. From there, I would like you to develop a tailored marketing strategy to reach and engage these customers. Please be specific in describing the tactics and channels you would use to reach and engage these customers, and include specific metrics that you would use to measure the effectiveness of this approach.