No. 2 Madonna and Britney get affectionate
It may seem laughable now, but in 2003 Britney Spears was the biggest pop star in the world and viewed by many as the heir apparent to Madonna. The two collaborated on the track “Me Against the Music,” and during that year’s VMAs, Madge decided to plant a wet one on Brit during their performance. She also kissed Christina Aguilera–but no one seemed to care. It was her lip-smacking with Spears that stopped the presses.