How to make money at Uni (suggestions?)

I had a Rock Star attend uni with his three siblings. He would continue to give concerts (some on campus, others away) and would cut albums on his free time. Beyond that, he was already wealthy, making a bulk of his money while still a teen. Became a teen Global Superstar, he did. Also, he's much wanted on the cover of magazines so at §10,000 a pop, same pay as for an epic concert, he was rolling in the dough. The others spent their time on their studies. Since Erik helped them out financially, they needn't work.