Britney, Madonna and Christina Aguilera Kiss

When: 2003 MTV Video Music Awards
In the ultimate tribute to the Queen of Pop, Britney Spears, Christina Aguilera and Madge embraced their penchant for publicity by engaging in a three-way kiss during a performance of "Like a Virgin." While Christina's attention subsided within days, the moment itself secured headlines for weeks and signaled that like Britney once infamously sang, she wasn't "that innocent."