March 30 (UPI) -- South Korean singer Irene has released her debut solo album. The K-pop star, a member of the girl group Red Velvet, released the album Biggest Fan and a music video for her single of the same name Monday. The "Biggest Fan" video shows Irene entering a subway station and performing on the platform. Along the way, she is greeted by adoring women fans. The Biggest Fan album also features the tracks "Best Believe," "Don't Wanna Get Up," "Face to Face," "Million Miles Away," "Love