21. As Long As You Love Me by Justin Bieber

Justin Drew Bieber is a Canadian singer-songwriter, record producer and actor. Bieber was discovered in 2008 by American talent manager Scooter Braun, who came across Bieber's videos on YouTube and later became his manager. Born: March 1, 1994 (age 18), London Height: 1.70 m Parents: Pattie Malette, Jeremy Bieber Siblings: Jazmyn Bieber, Jaxon Bieber