The American Idol season 11 winner proposed to his girlfriend, Hannah Blackwell – and she said yes!
"My best Christmas surprise is happening. We're engaged yall!" the singer captioned a happy photo on Facebook.
As Phillips, 24, flashes the camera a big grin, his bride-to-be – who seems to be still in shock – holds up her left hand to reveal her new diamond ring.
"I've been dreaming of this for over 20 years. I've been dreaming of this guy for just that long. Overwhelmed with happiness," Blackwell wrote on Instagram, showing off a second look at her stunning new sparkler next to a holiday photo ornament from her childhood.
Phillips, who recently wrapped his North American tour for his latest album, Behind the Light, met Blackwell, who in 2012 was studying to be a nurse, when the two volunteered at the same women and children's center.
"She supported me throughout all of this and I love her to death," Phillips told PEOPLE after winning the singing competition.