In Greek mythology, Hymenaios (also Hymenaeus, Hymenaues, or Hymen; Ancient Greek: Ὑμέναιος) was a god of marriage ceremonies, inspiring feasts and song. A hymenaios is also a genre of Greek lyric poetry sung during the procession of the bride to the groom's house in which the god is addressed, in contrast to the Epithalamium, which was sung at the nuptial threshold.

http://en.wikipedia.org/wiki/Hymenaios

HYMENAIOS (Hymen or Hymenaeus) was the god of weddings, or more specifically of the wedding hymn which was sung by the train of the bride as she was led to the house of the groom. Hymenaios was numbered amongst the Erotes, the youthful gods of love. As one of the gods of song, he was usually described as a son of Apollon and a Muse.

http://www.theoi.com/Ouranios/ErosHymenaios.html