Which retailer holds the Guinness World Record for the 'Largest Product Launch Attendance' when they unveiled a new product line in 2018?

The retail industry has seen some extraordinary achievements that have made it into the Guinness World Records. From the largest stores to the most expensive products ever sold, retailers constantly push boundaries to stand out in the competitive marketplace. This trivia question tests your knowledge about an impressive retail record that showcases the power of experiential marketing and consumer engagement. Do you know which retail giant holds this remarkable achievement?

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Alibaba Group (China) with 42,529 attendees for their Singles' Day Festival product showcase
Amazon (USA) with 38,712 attendees for their Prime Day Innovation Showcase
Walmart (USA) with 36,245 attendees for their Sustainability Collection launch
IKEA (Sweden) with 31,879 attendees for their Smart Home Collection unveiling