(Reuters) - R&B star Mary J. Blige was hit with a lawsuit on Wednesday alleging the Grammy winner and her husband defaulted on a $2.2 million bank loan. According to court documents filed in New York State Supreme Court in Manhattan, Signature Bank is seeking to recoup the original loan plus $58,000 in interest. Blige, 41, who has sold more than 50 million albums worldwide, and her husband Martin Isaacs took out the loan in October 2011 and defaulted in July 2012, the suit alleges. Blige's publicist declined comment on the lawsuit. ...