Season 2: How I Met Your Mother -

In the episode "Slap Bet," we learn about Robin’s secret past as Canadian teen pop star Robin Sparkles . This introduces the "Slap Bet," where Marshall wins the right to slap Barney five times at any point in the future.

After weeks of tension, they eventually reunite, proving they are the show's emotional anchor. 🥖 The Ted and Robin "Honeymoon" How I Met Your Mother - Season 2

They navigate living together and sharing their lives. In the episode "Slap Bet," we learn about

Barney prepares for his appearance on The Price is Right . In the episode "Slap Bet