Amazon.com has joined with Universal Music Enterprises to offer free Valentine's Day e-cards featuring hit love songs from Elton John, Patsy Cline, Marvin Gaye and others in its music store.

The holiday cards come with 12 original recordings including The Carpenters' "Close To You," Trisha Yearwood's "She's in Love With the Boy," Lionel Richie's "Truly," Elton John's "Your Song" and Etta James' "At Last."

Cards can be personalized with a photo puzzle that spells out a secret message when unlocked.

Amazon will feature UMe albums that include the songs in its Valentine's Day store and in its Valentine's Day email to customers. The albums included in the promotion are from the Love Songs series for Trisha Yearwood, Etta James, Elton John, The Carpenters, Conway Twitty, Vanessa Williams, The Temptations, Billy Ray Cyrus and Marvin Gaye. Lionel Richie's "Truly: The Love Songs," Patsy Cline's "True Love: A Standards Collection," Barry White's "The Icon is Love" and compilations "Pure 80s Love: The #1 Hits" and "The One And Only Album" will be featured as well.

Cards will be available through Feb. 14 at http://www.amazon.com/musicgifts.