Photo Flash: Mary J. Blige, Chris Rock, and More Join Taylor Swift Onstage at the Staples Center

At her August 22nd 1989 World Tour stop in Los Angeles, Calif., Taylor Swift surprised the crowd with multiple guest stars who joined her on stage. Included in the lineup was singer Mary J. Blige, who debuted two new songs with Swift, as well as actors Chris Rock, Matt LeBlanc, "Blank Space" music video star Sean O'Pry, who came on stage while Taylor Swift sang "Style," and Uzo Aduba, who performed "White Horse," with Swift. In addition, Taylor Swift met up with PARKS AND RECREATION star Adam Scott and his family backstage after the show. Check out photos of the stars together below!

Click here to watch Swift and Aduba's performance!

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, eleven COUNTRY 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.

Photo credit: Twitter/Taylor Swift, Twitter/Adam Scott