Idris and Sabrina Elba are the newest ambassadors for Calvin Klein's historic (and sexy!) Eternity fragrance franchise — and share exclusive behind-the-scenes details with PEOPLE.

Welcome to Big Boss Fragrance Reviews, where Christopher Lee, aka "Big Boss," explores the world of scents. Discover the ...

Funnily enough, Calvin Klein Eternity was actually my first fragrance. And I think for a lot of people, it was their entry into fragrance. I remember begging my mom to buy this for me.