Katharine McPheeis a bride-to-be! 

Hours ago, the American Idol runner-up confirmed that music mogul David Foster had proposed after more than a year of dating. McPhee shared a text conversation with a friend on Instagram, revealing that Foster popped the question on a mountain in Capri, Italy during a moonlight stroll. 

And while she's yet to unveil what it's expected to be one incredible diamond bauble, an insider describes the engagement ring as "very elegant and large." 

"They are both very happy and over-the moon-excited," adds the source. "Katharine has been wanting this for a while now. David has been planning the engagement, but has kept it very secretive. Only a few family members knew about his plans." 

The future newlyweds have known each for more than a decade, but only recently did Katharine and David find themselves single at the same time and ready to embark on a new relationship. McPhee, 34, was previously married to Nick Cokas for six years, while Foster, 68, has been married four times. 

In celebration of their engagement, take a trip down memory lane to see where it all began for Katharine and David. 

Katharine McPhee, David Foster

Frederick M. Brown/ Getty Images

Katharine McPhee, David Foster

Kevin Mazur/WireImage

David Foster, Katherine McPhee

London Ent / Splash News

Katharine McPhee, Health

Jeff Lipsky

David Foster, Katherine McPhee

Bruce/MSBH / BACKGRID

David Foster, Katherine McPhee

Charley Gallay/Getty Images for Bumble

Katharine McPhee, David Foster

BACKGRID

Katharine McPhee, David Foster, 2018 Oscar Elton John Party

Venturelli/Getty Images for Bulgari

Katharine McPhee, David Foster

George Pimentel/Getty Images

David Foster, Katharine McPhee

Dave Benett/Getty Images for BVLGARI and EJAF

Congratulations to the happy couple! Check out even more celebrity engagements of 2018 right here

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