Amazing Unknown Facts About The Sensational Selena Gomez By Ishan - June 23, 2017 0 619 6. Selena’s favourite actress is Rachel McAdams. Via 7. In 2009, Selena Gomez featured on Forever The Sickest Kids’ song “Woah Oh!” This was her musical debut. Via 8. Gomez is a huge fan of horror movies. Horror is her favourite movie genre. Via