This week rapper 50 Cent used twitter to promote a publicly trade company called H&H Imports, Inc. to his 3.8 million followers. The company stock jumped from .10 to .39 per share. 50 wrote "TVG's stock went from 5 cent to 10 in one day, You can double your money right now. Just get what you can afford." his fans responded by buying $50 million worth of the stocks. 50 Cent made $8.7 million from those exchanges in one day.