Ever chaperone your kid's school trip? Maybe a high school dance where you had to make sure the "foot rule" was in effect (that awkward hands to waist /shoulders shuffle, aimed to deter "grinding" "freaking" or, back in the day, "dirty dancing"). What if your kid were 25? Lady Gaga's mom doesn't seem to think there's an age limit on serving as a chaperone. Tabloids report she'll be joining her daughter on tour to make sure the pop superstar doesn't drink too much.