Update — December 21, 2014 2:06pm: Elton John and his Canadian filmmaker fiancé David Furnish are now officially married! And as promised, the longtime couple has shared photos from the big day on Instagram. Behold, the highlights!

Today’s menu! #ShareTheLove

Une photo publiée par Elton John (@eltonjohn) le Déc. 12, 2014 at 7:32 PST

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The exchange of vows. #ShareTheLove A photo posted by Elton John (@eltonjohn) on Dec 12, 2014 at 7:14am PST

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That’s the legal bit done. Now on to the ceremony! #ShareTheLove @DavidFurnish

Ein von Elton John (@eltonjohn) gepostetes Foto am Dez 12, 2014 at 3:20 PST

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It’s beginning!! The Registrar welcomes our guests. #ShareTheLove A photo posted by Elton John (@eltonjohn) on Dec 12, 2014 at 6:15am PST

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And the tables are set for a delicious lunch. #ShareTheLove

A photo posted by Elton John (@eltonjohn) on Dec 12, 2014 at 7:29am PST

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Longtime partners Elton John and David Furnish are getting married on Sunday. And they really want you to be involved. Okay, you won’t be permitted to attend the actual nuptials — said to be taking place at their Windsor estate. However, the British music legend and his Canadian filmmaker fiancé plan to provide regular updates to fans via social media. In fact, Elton even created an Instagram account for the very occasion. His first post: this image.

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Elton and David entered into a civil partnership in 2005. So why tie the knot now? Simple: last March, the U.K. government finally paved the way for the legalization of same-sex marriage.

Kudos to the soon-to-be married couple!