Dancing with the Stars' Witney Carson Is Engaged: 'My Heart Is Full of Love and Happiness'

Dancing with the Stars

pro dancer Witney Carson is engaged!

Carson, 21, announced the news on Instagram Saturday, sharing a romantic shot of herself with her new fiancé, Carson Mcallister, 23.

“My high school sweetheart popped the question last night in the most perfect, beautiful way,” Carson told PEOPLE. “He was waiting for me on the beach surrounded by candles. Danced with me while the sun went down and then knelt down on one knee and asked me to marry him! Of course I said yes.”

The star, who met Mcallister as a teenager in their hometown in Utah, said on Instagram “my heart is full of love and happiness!”

“My love of four years @carson.mcallister proposed last night & I feel like the luckiest, happiest woman in the world,” she wrote on Instagram of the beach photo. “It was perfect, he’s perfect #engaged.”

Carson, who previously appeared on season 9 of So You Think You Can Dance and made it to the show’s top three girls, was first promoted to DWTS pro in 2014 after starting off in the troupe.

The blonde’s work on the show is already being recognized. Carson was nominated for the 2015 outstanding choreography Emmy award for three routines she performed on season 19 with her celebrity partner and competition winnerAlfonso Ribeiro.

•Reporting by PATRICK GOMEZ