Adele wrote a letter to Sir Elton John to apologize for missing his wedding on Sunday, Dec. The “Rolling in Deep” star said sorry for her absence after missing the nuptials, during which the music legend and his long-term partner David Furnish upgraded their civil partnership to a marriage following recent law changes in the U.K. that legalized same-sex unions. Signing the letter from herself, her partner Simon Konecki and their son Angelo, she wrote, “Biggest congratulations my loves.