Before the start of her tour, Taylor Swift (33) announced a surprise for her fans: the US singer released four songs that had not previously been heard in this form. To celebrate her "The Eras" tour, she released four "previously unreleased songs", she revealed in her Instagram stories.

The four tracks include re-recordings of Swift's contributions to The Hunger Games soundtrack: "Eyes Open" and "Safe

The tour kicks off this Friday (March 17) with back-to-back shows in Glendale, Arizona, temporarily renamed Swift City in Swift's honor. The singer will then travel to Las Vegas, Nevada on March 24th. It also stops in Arlington, Tampa, Houston, Atlanta, Nashville, Philadelphia, Chicago, Detroit, Cincinnati and Seattle.

Taylor Swift announced her new tour in November. The multiple Grammy winner gave a first taste on Instagram. There she published several pictures that she apparently shows for the rehearsals of her show.