Which celebrity-brand collaboration holds the record for the fastest-selling collection in H&M's designer collaboration history, selling out online in minutes and causing website crashes in 2015?

The world of pop culture and retail has been revolutionized by strategic celebrity brand collaborations. These partnerships have created some of the most successful product lines in recent retail history, generating unprecedented buzz and sales. Test your knowledge about these iconic pop culture retail collaborations that changed the game for both celebrities and brands alike!

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Balmain x H&M (with Kendall Jenner, Gigi Hadid, and Jourdan Dunn)
Alexander Wang x H&M (with Rihanna as brand ambassador)
Versace x H&M (with Lady Gaga as the face of campaign)
Moschino x H&M (with Gigi Hadid leading the campaign)