University of Dayton's Phi Mu Alpha sinfonia delivered singing valentines to about 20 students on Sunday.

The musical fraternity's choir sold the valentines for $5. Students were able to order the gift for their special someone and the Phi Mu Alpha sinfonia brothers surprised the recipient on Valentine's Day by singing one of five songs: "Serenade to a Girl," an original Phi Mu Alpha sinfonia composition; "My Girl" by the Temptations; "The Longest Time" by Billy Joel; "For All My Life I Can't See Me Lovin' Nobody but You" by The Bee Gees or "Happy Together" by The Turtles.

The men were dressed in suits and delivered the song, as well as a rose to the receivers unexpectedly at their home.

"I was slightly embarrassed," graduate student Colleen O'Grady said. "It's the second [year] my friend Trisha's done this for me, and I was surprised."

Some of the brothers surprised their own girlfriends with a serenade.

Some male students were delivered a valentine by the brothers as a joke.

"Well, they sang it in tune," junior Anthony DeGregorio said about his valentine that was a gift from one of his male friends.

The men sung DeGregorio "Serenade to a Girl."

The fraternity raised $100 and the brothers found it to be a great success.

"It was a success both in terms of fundraising and in terms of making people happy on Valentine's Day," said junior Josh Cain, who delivered a song to his girlfriend. "We put a lot of extra effort in to it this year and I think it paid off."