Starbucks plans to give away 50 million free digital songs to customers in all of its domestic coffee houses to promote a new wireless iTunes music service that’s about to debut in select markets, reports AP. From October 2-November 7, the company’s stores will give away about 1.5 million “Song of the Day” cards each day. The cards can be redeemed at the iTunes Store. Also on October 2, Starbucks will start selling iTunes digital release cards that allow a full album of music and bonus material to be downloaded online. KT Tunstall’s “Drastic Fantastic” and the soundtrack to the film “Into the Wild” with new music from Pearl Jam frontman Eddie Vedder will be the first two featured albums, retailing for US$14.99 and $11.99, respectively. The service will launch at 600 Starbucks shops in Seattle and New York on October 2, then roll out in San Francisco in early November.