Rain at 'Kim Tae-Wan's wedding today. (Feb. 20, 2010)

Rain sang his hit song 'I Do' to celebrate the wedding of 'Kim Tae-Wan', wearing sunglasses.

Before singing, Rain asked the bride and groom to kiss whenever the word 'I Do' appears during the song, which was alleged to amuse the wedding party including himself, and he was out of there straight after singing.

Source: Rain Gallery@DC Inside.com
Brief translation credit: rain bird@rain-eu.com