(CNN) -- Sir Elton John and David Furnish are now husband and husband. The two married Sunday in Britain, where same-sex marriage became legal earlier this year. They had a civil partnership ceremony in 2005, after 12 years together. They have two children -- Zachary Jackson Levon Furnish-John and Elijah Joseph Daniel Furnish-John. The two men invited people all over the world to join them for the ceremony via Elton John's brand new Instagram feed. .
Elton John and David Furnish were married Sunday . Same-sex marriage became legal in Britain this year . The men previously had a civil partnership . They have two children .