Nicole Richie & Joel Madden Twit-Pick on Each Other

From rooting for rivals to posting unflattering photos, it's all fair in love and Twitter war!

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ANIMAL ATTRACTION

While in Philadelphia, the couple took daughter Harlow to the city's 135-year-old zoo, the first in America. "Harlow really enjoyed the Hippos. Nicole somehow found a way convince Harlow that I am a gorilla," Madden lamented.