'Heads up! There’s a wedding in the family!!! My granddog is getting hitched!! What has the world come to? Lol,' the 63-year-old hilariously captioned the snap.
The loved up couple have known each other for a few years but only recently have taken their relationship public.
Alex Martin-Dean's pup Filmore met Izzy (aka Izzy The Frenchie) after Izzy's owner Rick Hendrix worked with Whoopi for Hilary Clinton's campaign according to TMZ.
The website reported that the families came up with the marriage idea after 'hanging out over the holidays'.
A celebrity photographer - Timothy White - will be snapping the newlyweds as they chow down on a cake from legendary baker Juanita Lane of Dulce Desserts.