Elton John received many well-wishes from his friends following his marriage to David Furnish over the weekend -- and he was clearly thrilled at the outpouring of love, posting an Instagram shot of all the cards.
Front and center? A classy handwritten message from Adele, apologizing for not being able to make the ceremony. The card reads (via The Daily Mail), "Biggest congratulations my loves. Have a wonderful day. I'm sorry we are not there. See you in 2015. Love Adele, Simon and Angelo. x.'