It's Cady Heron's mom! I didn't know she had such an incredible voice. Also, "I'm not a regular tree, I'm a cool tree" and "I'm alone, like the new girl at school" were definitely both Mean Girls allusions. Although they were clever misdirects, since Amy Poehler was the one who said the "cool mom" line, and the new girl alone at school was Lindsay Lohan, not Ana...
