Captain Planet and the Planeteers (1990)

S2E14 Stardust

Gi and Linka are furious when Wheeler insults their beloved rock singer. However, their anger shifts to shock when they discover a destructive strip-mining operation led by Hoggish Greedly, funded by none other than their idol, Sky Runner. Faced with this revelation, they confront the star, who insists he had no idea about the destruction. Despite this, the trio must work together to stop Greedly and save the small mining town from being devastated.