Swift releases song, plans Berlin show

Swift also announced a new show for Berlin as part of British run of dates and a collaboration on her CMA performance.

Swift wrote and co-produced the song with Jack Antonoff from fun. The song is on the original soundtrack album, released this week by Sony. The movie drops Dec. 27 in New York and Los Angeles

Swift first shared the news of the song's release with fans, using a surprise announcement on Twitter (@taylorswift13) in the hours leading up to the song's iTunes posting. She tweeted that, "Something I'm really excited about is happening very soon! Maybe even as soon as tonight!", then announced the big news and posted a link to the song on iTunes.

The RED Tour heads to Australia and New Zealand next month. On Monday, Swift added a Feb. 7, 2014 date at Berlin's O2 World to her previously announced 2014 five-show UK leg of the tour at London's O2. Swift plays the O2 in London on Feb. 1, 2, 4, 10 and 11.

Swift released a brand-new song on iTunes this week, Sweeter Than Fiction, from the upcoming Weinstein Company film "One Chance." The song hit number one on the iTunes Country chart and Top 5 at iTunes over-all in more than 20 countries around the globe within hours of release, including the U.S., Brazil, Canada, Sweden, Singapore, the Philippines, Argentina and Lebanon.

Swift also announced this week that she will perform her hit single Red on this year's CMA Awards telecast with Alison Krauss, Edgar Meyer, Eric Darken, Sam Bush and Vince Gill. Swift is nominated for six CMA awards, including Entertainer of the Year, and the show airs live on Nov. 6 on ABC.