Do rockstar games feature real musician cameos?

Based on the verified source provided, which discusses the 2007 film Bratz, there is no information indicating that Rockstar Games includes real musician cameos in any of their titles. The evidence does not mention Rockstar Games, video game development, or cameo appearances by musicians, so we cannot confirm such a feature. Without additional verified sources, we must treat the claim as unsubstantiated. Further research would be required to determine whether Rockstar Games has ever used musician cameos in their games.