Kirstin Maldonado of the hit a cappella group Pentatonix is about to become a Mrs.!

The 24-year-old revealed on Instagram Monday that she's engaged to boyfriend Jeremy Michael Lewis after he popped the question in front of Paris' Eiffel Tower.

RELATED: 'Catfish' Star Nev Schulman Engaged to Pregnant Girlfriend — See Her Stunning Ring!

"Hi fiancé," the singer captioned a photo of her reaction, later tweeting a line from the song "Nature Boy," which goes, "The greatest thing you'll ever learn is just to love and be loved in return."

Jeremy also shared the news on his account, writing, "In august of 2013, I was blessed with the opportunity to meet you, the most incredible woman in the entire world. Since that very day not a moment has passed where you haven't consumed my entire being with your love, support, and friendship."

He added, "You deserve nothing but the best, and no matter what life brings to us, I promise to give you nothing but my best."

RELATED: Surprise! See Which Celeb Couple is Back Together After Divorcing

Pentatonix is currently in the middle of a world tour that concludes in November. Congrats to the happy couple!