The album won four Grammy Awards, with Swift becoming the youngest Album of the Year winner.
Swift was the sole writer of her 2010 album, Speak Now.
Swift made her acting debut in a 2009 episode of CBS's CSI: Crime Scene Investigation, playing a rebellious teenager.
The New York Times noted that the character allowed Swift to be "a little bit naughty, and credibly so".
It entered the United States at number three, making Swift the second female artist in the history of the Hot 100 (after Mariah Carey) to debut multiple tracks in the top five in one year; the other was "Today Was a Fairytale" at number two.
It became the fastest-selling digital album by a female artist, with 278,000 downloads in a week, earning Swift an entry in the 2010 Guinness World Records.
At the 52nd Grammy Awards, Fearless was named Album of the Year and Best Country Album, and "White Horse" was named Best Country Song and Best Female Country Vocal Performance.
In August 2010, Swift released "Mine", the lead single from her third studio album, Speak Now.
Swift's sixth album, Reputation (2017) and its lead single "Look What You Made Me Do" topped the UK and US charts; with the former, she became the first act to have four albums sell one million copies within one week in the US.
Swift is one of the best-selling music artists of all time, having sold more than 40 million albums—including 27.8 million in the US—and 130 million single downloads.
It debuted at number one in the United States and the single "Mean" won two Grammy Awards.
Her fourth album, Red (2012), yielded the successful singles "We Are Never Ever Getting Back Together" and "I Knew You Were Trouble".