The 71-year-old crooner is going by the handle: Ms Ross and she posted on the social network for the first time, revealing in her inaugural tweet that she was "loving it", reported Billboard.
Ross is currently following five accounts, all of which are her children (Tracie, Evan, Rhonda, Chudney and Ross Naess).
The second tweet promoted her son Evan's single 'How to Live Alone' featuring TI, as Ross asked her followers to check it out on iTunes.
Ross most recently signed up as a guest mentor on "The Voice" in the NBC talent show's latest season.