The first dance is always one of my favorite parts of any wedding reception. It's great fun for the couple and everyone in attendance, and a wonderfully symbolic moment that helps to set the mood for rest of the evening, and will hopefully become a theme for the rest of their lives together. As a DJ, this is often one of the first things I discuss with my clients.
Of course, there are the obvious songs:
At Last, Unforgettable, What A Wonderful World, and a few others that one might hear frequently at other weddings.

But the couples I work with come to me for a custom-tailored and personalized wedding reception. If they ask for help with a first dance song, rather than give them some crusty list of tunes to which they have no personal connection, we start talking about songs that are particularly meaningful to THEM!
The results are always surprising and pleasing, and helps make the evening more fun and personal.
I will share with you how I help people nail down a great first dance song that they will treasure for decades.First - I ask lots of questions. What songs were popular when they started dating? What song was playing when they first kissed? What songs do they listen to when they are taking road-trips? - anything that gives us hints about who these people are together. Usually a perfect first dance song is hidden in there somewhere waiting to be discovered. It's amazing to see ideas surface that they never would have thought of otherwise, like a recent couple that had been dating since high-school who gave me a mix-tape that he made her (Yes, on CASSETTE!) We uncovered a perfect song that had deep personal meaning for the both of them, and I got a boatload of other songs to sprinkle throughout the rest of the night.
My criteria for a good first dance song are fairly simple -
1) Think long-term. Once you hit the floor on your wedding-day, this will forever be your First-Dance song. Consider how you might feel about the song in 5,10,15 years and farther down the road. Songs that are popular now could seem a little dated or not have much significance to your future selves.
2) Watch the pace. Not too fast, not too slow. First dance songs with a little bounce to them are easier to dance to. You don't need to be Fred and Ginger, but it's nice to have a song that will give you the opportunity to do more than turn slow circles like you're in Middle School. Something like Sam Cooke's
You Send Me is still pretty slow, but has little bounce that carries the song, and the dance, along.
3) Words mean things. Listen to the song. look up the lyrics online. Think about the meaning. Sometimes the melody can be misleading, One of my favorite tunes
Dream a Little Dream of Me turns out to be about two lovers parting.
Unchained Melody is song of unrequited love. Patsy Cline's
Crazy is about the broken hearted-est song ever and should not be played within 300 feet of newlyweds, yet it tops many first dance lists.
4) Leave 'em wanting more! It's a wonderful moment, but the novelty wears off for the newlyweds and and the audience fairly quickly. Some songs can top 4 minutes or more, and though it does not sound like long, most couples start looking lost after about two minutes or so. The remaining time can feel awkward. Unless there is a perfect break in the middle of a song, fading it out can seem abrupt, so I keep a keen eye on the timing and offer to edit the song for length but still preserve the natural ending. This leads us to the...
5) Big finish! The crowning glory of a great first dance song is a nice flourish at the end.
A Kiss To Build A Dream On has a nice subtle "Tadaaaaa" at the end that's perfect for a little dance floor dip, while something like Bobby Darin's
More ends with a big POW that always gets a big roar from guests.
Of course you can throw all of these criteria right out the window if there is a song that you absolutely have to have for your own personal reasons. If there is a song that is undeniably you, ignore all the suggestions and just go for it.
Last year one couple used Elvin Bishop's
Fooled Around and Fell in Love. I had the good sense to just write it down and move on. I sensed that doing otherwise might reveal too much information.
The all-time weirdest so far: Manfred Mann's
Do Wah Diddy. When I introduced the couple and played it, people stood slack jawed for a moment and then the house filled with laughter and cheers - it was SO them!
Here are some of my favorite suggestions for First Dance songs:Till There was you - Beatles
Too Marvelous For Words - Ella Fitzgerald
I Hear a Symphony - Supremes
When I Grow Too Old to Dream - Nat King Cole
Cheek to Cheek - Peggy Lee
Don't Look Back - Temptations
Never Found Me a Girl (That Treats Me Like You) - Al Green
A Kiss to Build a Dream On - Louis Armstrong
Tenderly - Roberta Flack
This Magic Moment - Ben E. King
The Best is Yet to Come - Nancy Wilson
It Had to be You - Ray Charles
All I Do is Dream of You - Dean Martin
More - Roy Orbison
You Send Me - Sam Cooke
Just the Way You Look Tonight - Little Jimmy Scott
Melt With You - Nouvelle Vague
Love to See You Smile - Randy Newman*
*My First Dance with my gorgeous, long-suffering wife, Monica August 4th 1990.