R&B artist R. Kelly was found guilty by a federal jury yesterday, Monday, for sex trafficking and exploiting women and underage girls in sexual activity.

The famous singer, whose real name is Robert Sylvester Kelly, became an international sensation for his 1996 Grammy-winning song "I Believe I Can Fly."

During the six-week trial that began on the 18th of August, nine women and two men gave an account of R.Kelly's sexual intimidation, humiliation, and violence. The R&B singer was also accused to have faked a certificate listing late singer Aaliyah's age as 18 in order to marry her, while she was only 15.

Gloria Allred, a lawyer representing several victims, described Kelly as the "worst" sexual predator she has ever encountered during her 47 years in the field. Addressing famous powerful predators, prosecutor Jacquelyn Kasulis pledged that the law will catch them "no matter how long it takes."

The singer was formerly declared not guilty of child pornography charges after a trial in the state of Illinois.

R.Kelly, 54, could spend the rest of his life in jail.