The couple tweeted their happy news simultaneously on Thursday alongside a sweet selfie; the actress writing, "I'm engaged to him", and Johnny posting, "I'm engaged to her."
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Courteney Cox and Johnny McDaid have announced their engagement
Courteney, 50, and Johnny, 37, were first spotted together in November 2013 at Jennifer Aniston's party. They were introduced by mutual friend Ed Sheeran, who was among the first to congratulate them on their engagement, simply writing, "yayayayayay."
In an interview with OMG! Insider, Ed spoke about his matchmaking skills. "I wasn't allowed to talk about this, actually, but it's just gone public, so… My housemate (Johnny) who I've lived with for a year, I introduced him to Courteney Cox. They started dating and are crazy about each other.
It was mutual friend Ed Sheeran who introduced Johnny McDaid to Courteney Cox
"I ended up spending a lot of time living in her beach house and therefore bumping into all these random people. We spent Thanksgiving Eve at Jennifer Aniston's before spending the day at Courteney's."
Back in April, the couple themselves spoke about their romance at the premiere of Courteney's directorial debut, Just Before I Go.
Courteney Cox and Johnny McDaid at the premiere of Just Before I Go
"He supports me in ever way," the former Friends star told US Magazine. "He supports me creatively. He really believed in the movie, and not just because he likes me, though I know that helps!"
Northern Ireland-born Johnny added, "Courteney is the most confident person I've ever met – at everything. She gets music. She gets art. She gets the way a scene gets constructed, the way dialogue works. And she puts it all together in her mind and then explains it to the world and makes movies that make people laugh and cry, squirm and jump, all those things."
Courteney Cox and Johnny McDaid pictured together earlier this month
It will be the second marriage for Courteney, who finalised her divorce from David Arquette in May 2013, just ahead of their 14th wedding anniversary. The couple are parents to 10-year-old daughter Coco; David welcomed son Charlie with Christina McLarty in April.