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!'

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Causing commotion: Music manager Larry Rudolph spilled details behind the infamous kiss between Britney Spears and Madonna at the 2003 MTV VMAs

While Madonna also planted one on Christina Aguilera, it was the intimate moment with Britney that generated all the headlines.

Larry revealed the Girl Gone Wild singer - who is notorious for being a perfectionist with her performances and concert tours - was insistent they get everything just right before the cameras rolled.

'Madonna had been very, very, very rigid about the rehearsals. She was telling Britney and I every day, 'Be here tomorrow at 10 o'clock,' he told the music publication.

Spilling the details: The 51-year-old said the Queen of Pop was 'very, very, very rigid' about rehearsing

'She would never address me by name; she would just say, "You make sure Britney's here tomorrow at 10 o'clock."'

On August 28, 2003, the pop stars took to the stage at New York's Radio City Music Hall to open the award show when 'that kiss happened and the world exploded.'

Afterwards, the busy music manager - who also handles Miley Cyrus - said Madonna had no problem expressing satisfaction that her long hours practicing paid off.

I was there too: Many forget that Christina Aguilera also shared a lip lock with Madge

Dirrty: The trio of pop divas caused a sensation with their sapphic antics

The Material Girl 'wrapped her arms around my waist and gave me a big kiss on the lips,' he recollected. 'And she said, 'You see Larry, it was all worth it."'

And 11 years later, the sapphic moment has gone on to be one of the most memorable in the history of the MTV Video Music Awards.

After their public make out session, Britney and Madonna went on to collaborate on the hit single Me Against The Music.