The country star revealed the big news during a performance at the Grand Ole Opry on Saturday night.
Onstage Saturday evening, Alaina was quick to acknowledge the new ring on her finger. Alaina then introduced her fiancé, Cam Arnold, to share in the happy occasion.
Arnold — a partner in a Nashville-based insurance firm — prefers to stay out of the public eye, but made an exception to celebrate the couple’s engagement, walking onstage to kiss his bride-to-be.
Though Arnold has occasionally joined Alaina at events over the course of their time together, the American Idol alum and Arnold have largely kept their relationship under wraps.
With No. 1 hits “Road Less Traveled,” “What Ifs” and “One Beer” under her belt, Alaina is currently working on new music for her first project with Big Loud, which she signed with in July.