Memorable kisses (46 images)

Jimmie Johnson and crew Kiss the Bricks celebrating his fourth Brickyard 400 win on July 29, 2012 in Indianapolis, Indiana. UPI/Ed Locke

US President Barack Obama kisses First Lady Michelle Obama as they appear on the 'Kiss Cam' during the Olypmics-bound U.S. men's national basketball team game against Brazil, at the Verizon Center on July 16, 2012, in Washington, DC. This was their second chance, since they did not kiss earlier in the game when they were on the 'Kiss Cam'. Photo by Leslie E. Kossoff/UPI

Lady Gaga and New York City Mayor Michael Bloomberg kiss at the stroke of midnight during the New Year's Eve celebration in Times Square on January 1, 2012 in New York City. UPI/Monika Graff

Prince William and Princess Catherine share a kiss on the balcony of Buckingham Palace after their wedding at Westminster Abbey as three-year-old bridesmaid Grace van Cutsem reacts to the cheering on April 29 2011 The Royal couple will now be known as the Duke and Duchess of Cambridge. UPI /HugoPhilpott