Justin Drew Bieber (born March 1, 1994) is a former friend of Taylor's and one of the most successful male solo artists in music today with such hits as "Baby", "Boyfriend", "Sorry", and "Love Yourself".
Friendship with Taylor
He once invited Taylor over to his home in Hawaii, asking her to help him write songs, then surprised her by setting her up on an episode of MTV's Punk'd in 2011. Also, Justin was invited to do an opening act at Taylor's concert in London, 2009, and broke his foot during "One Time", but still finished it. Taylor posted a video on YouTube with JB, and asked about his foot. They were also pictured together at the Teen Choice Awards 2011.
Current relation to Taylor
Swift is apparently upset with him for his treatment of her best friend Selena Gomez, whom Bieber dated for 2 years.
Taylor previously was seen sticking out her tongue in disgust seeing Selena and Justin kiss backstage at the 2013 Billboard Awards.
Bieber's song "All Bad" takes a shot at Taylor. However, he recently tweeted that he would like to rekindle his friendship with her.
Bieber married model and television host Hailey Baldwin in September 2018. They had originally met in 2009 and briefly dated from December 2015 to January 2016 before reuniting in May 2018.
Performance with Taylor
Justin performed Baby with Taylor on stage during the Speak Now World Tour at the Staples Center, Los Angeles on August 23, 2011.