President Barack and First Lady Michelle Obama kissed last night while watching the USA men's basketball team play Brazil in Washington DC. Many couples have been caught sneaking a lip-lock in an arena. David and Victoria Beckham were caught on the Kiss Cam, a device that's also snapped sweet moments between Reese Witherspoon and Jake Gyllenhaal, as well as Drew Barrymore and Will Kopelman.
The Kiss Cam is in good fun, but sometimes things take a more passionate turn — like for Justin Timberlake and Jessica Biel! Click through to check out the other stars unafraid to show PDA in front of thousands.