TRANSITION TO POP

Red, Swift's fourth studio album, was released in October 2012. On Red, Swift worked with Chapman and new producers including Max Martin, Shellback, Dan Wilson, Jeff Bhasker, Dann Huff, and Butch Walker, resulting in a genre-spanning record that incorporated eclectic styles of pop and rock such as Britrock, dubstep, and dance-pop. The album opened at number one on the Billboard 200 with 1.21 million sales and was Swift's first number-one album in the UK. Its lead single, "We Are Never Ever Getting Back Together", was her first number one on the Billboard Hot 100, and its third single, "I Knew You Were Trouble", reached the top five on charts worldwide. Other singles from Red were "Begin Again", "22", "Everything Has Changed", "The Last Time", and "Red".

In March 2014, Swift began living in New York City, which she credited as a creative influence on her fifth studio album, 1989. She described 1989 as her first "official pop album" and produced it with Jack Antonoff, Max Martin, Shellback, Imogen Heap, Ryan Tedder, and Ali Payami. Released in October 2014, the album opened atop the Billboard 200 with 1.28 million copies sold. Its singles "Shake It Off", "Blank Space", and "Bad Blood" reached number one in Australia, Canada, and the US, with the first two making Swift the first woman to replace herself at the Hot 100 top spot. Other singles include "Style", "Wildest Dreams", "Out of the Woods", and "New Romantics". The 1989 World Tour (2015) was the highest-grossing tour of the year with $250 million in total revenue.