A PopStar And A Rockstar Can't Be Friends?!

Megan and Niall had been best friends when they were younger, but when Megan' parents split she is forced to stay in her house for three days. When she goes to school, she see's she has been replaced by a boy with Curly hair. She explains to her mum what happened that day, and all her mum can say is that they are moving... To England.
Ten years later, Megan and Niall meet after a concert and are told by people that they can't be friends...... What will happen? Will they break all the rules and be friends, or live in the past.
(I really can't write descriptions so I'm sorry!!)