This helpful document is a wedding music performance example and also provides additional options for each part of a traditional ceremony. 

Classical Music
Air on the G String-Bach
Air-Handel
Aria-Handel
Arrival of the Queen of Sheba-Handel
Ave Maria-Schubert
Bouree -Handel
Bridal Chorus-Wagner
Bridal March-Mendelssohn
Canon in D-Pachelbel
Concerto in E Major-Bach
Corrente-Corelli
Danza Pastorale-VivaldiHornpipe-HandelEine Kleine Nachtmusik-Mozart
Jesu, Joy of Man's Desiring-Bach
La Paix -Handel
La Rejouissance-Handel
Liebestraum-Liszt
My Heart Ever Faithful-Bach
Ode to Joy Beethoven
Rondeau-Mouret
Spring-Vivaldi
Trumpet Tune-Purcell
Trumpet Voluntary-Clark
Trumpet Voluntary-Clarke
Winter-Vivaldi

Pop Music
Beatles:
Hey Jude
Yesterday
Get Back
Hard Day's Night
Tomorrow Never Knows
Paperback Writer
When I'm Sixty Four
Michelle
I Feel Fine
Norweigian Wood
Strawberry Fields Forever
Eight Days A Week
Here Comes the Sun

Coldplay:
Yellow
Viva La Vida
Clocks 

Miscellaneous: 
Anne's Theme ("Anne of Green Gables")
Gabriel's Oboe ("The Mission")
Someone to Watch Over Me (Gershwin)
I've Got a Crush on You (Gershwin)
Night and Day (Porter)
The Way We Were (Hamlisch)
The Rose (McBroom)
Pelagias's Song (Warbeck)
One by One (Enya)
Bittersweet Symphony (Jagger)
Love is All Around (Reg Presley)
One Hand One Heart (Bernstein)