It caused a worldwide media sensation when Madonna and Britney Spears kissed live on stage at the MTV VMAs in 2003.
And now the Toxic singer's longtime manager Larry Rudolph is revealing details of how the infamous lip lock went down.
In an interview with Billboard, the 51-year-old claims the Queen of Pop was "very, very, very rigid" about rehearsing but in the end was ecstatic with the buzzworthy outcome by exclaiming "it was all worth it!"
While Madonna also planted one on Christina Aguilera, it was the intimate moment with Britney that generated all the headlines.