Currently embroiled in a $500,000 lawsuit against her record company, singer and actress JoJo is making no secret of her professional frustration. According to a Myspace blog posted earlier today by the 18 year-old "Rv" star (real name Joanna Levesque), her label, Da Family Entertainment, is unfairly preventing her from pursuing her one true love: Making cliche pop music for tween audiences."I've been a patient team player