by Molly Daly

PHILADELPHIA (CBS) -- Time's running out to find a pitch-perfect treat for your Valentine.

If you want to strike the right note with your sweetie, why not book a Valentine's Day serenade from a barbershop quartet?

"The Barbershop Harmony Society has chapters all over the United States, and this is a traditional thing that has gone on for years," said Rob France of the Bucks County-based Cross Keys Connection quartet.

He says his group delivers vocal Valentines for $50.

"The recipient receives a mug full of chocolates, a single-stem rose, and a little personalized card, and then the quartet sings two songs, usually," France explained.

What's the best part about playing musical Cupid?

"I love the surprise, and I love the intimacy of singing to a loved one. And I love especially when both parties are there," said France.