VIDEO: Selena Gomez Joins Taylor Swift for Live 'Good For You' Performance

During her 1989 World Tour sold out concert at the Los Angeles Staples Center, country music superstar Taylor Swift brought out Selena Gomez to the stage to perform a duet of 'Good for You'. Check it out below!

Swift's self-titled debut album in 2006 established her as a country music star. "Our Song", her third single, made her the youngest person to single-handedly write and perform a number one song on the Hot Country Songs chart. She received a Best New Artist nomination at the2008 Grammy Awards. Swift's second album, Fearless, was released in 2008. Buoyed by the pop crossover success of the singles "Love Story" and "You Belong with Me", Fearless became the best-selling album of 2009 in the US. The album won four Grammy Awards, with Swift becoming the youngest ever Album of the Year winner. Swift's third album, 2010's Speak Now, sold over one million copies in its first week of US release. The album's third single, "Mean", won two Grammy Awards. In 2012, Swift released her fourth album, Red. Red's opening US sales of 1.2 million were the highest recorded in a decade, with Swift becoming the only female artist to have two million-plus opening weeks.

Swift is known for narrative songs about her personal experiences. As a songwriter, she has been honored by theNASHVILLE Songwriters Association and the Songwriters Hall of Fame. Swift's other achievements include seven Grammy Awards, twelve Billboard Music Awards, elevenCOUNTRY MUSIC ASSOCIATION AWARDS and six Academy of Country Music Awards. To date, she has sold over 26 million albums and 75 million digital single downloads, making her one of the best-selling artists of all time.