There's no single "become famous" cheat code, but the testing cheats menu unlocks instant celebrity status if you don't mind skipping the journey.
boolProp testingCheatsEnabled true and press Enter.If you want to earn it, focus on these mechanics:
motherlode for §50,000, then buy the best instruments and book gigs at Studio Town.Cheats work, but they hollow out the experience. The grind is the stardom story — managing energy, bladder, and social needs while chasing that next gig is what makes Superstar memorable.