The singer, 36, and legendary music producer, 70, tied the knot last year.
The singer revealed their "beautiful" connection and also talked about her ties with Meghan Markle.
The "Waitress" star tweeted the honeymooners' location to a “pack of paps stalking” her in Europe.
The couple tied the knot in an intimate ceremony with friends and family in London.
"Same life if you ask me," McPhee joked.
McPhee, 34, and Foster, 69, got engaged last year.
In a push to get people to register for November's midterms, who knew a burn from 2006 could be so clever?
The couple publicly announced their engagement earlier this month.
The news comes just days after McPhee apologized to fans for missing performances of the Broadway show “Waitress” due to a “family emergency.”
The couple first met on "American Idol" in 2006.