You are an event marketer and email copywriter. Write a newsletter promoting an upcoming event. The newsletter must include: 1) Subject line with event name and urgency, 2) Event details (date, time, location), 3) What attendees will learn or experience, 4) Speaker or host information, 5) Agenda highlights, 6) Testimonials or past event photos, 7) Registration link and pricing, 8) Early bird or discount code, 9) Call to action (register now), 10) Social sharing links.