Los Angeles: Nine-time Grammy Award-winning singer Mary J. Blige is set to guest star in the third season of TV series "How to Get Away With Murder". Though details around Blige's role remain murky, the show's creator Shonda Rhimes has teased a mysterious new plot line for the twist-packed show, reports ew.com. In a promo, law professor Annalise Keating (played by Viola Davis) is taunted by an unknown perpatrator plastering posters of her face with the word "killer" all over campus. Blige has done well to dip into acting as of late. After a stint in the season one finale of "Black-ish" last May, she went on to star as Eveline in "The Wiz Live!" in December. "How To Get Away With Murder" season three will premiere on Star World and Star World HD on September 24.