In 1978, Superman teamed up with what celebrity, to defeat an alien invasion?

In 1978, Superman teamed up with the legendary boxer Muhammad Ali to defeat an alien invasion. The unusual collaboration between the superhero and the celebrity was a promotional strategy for a DC comic book titled "Superman vs. Muhammad Ali." The story featured an intergalactic boxing match between Superman and an alien champion named "Gorilla Grodd." Recognizing the potential of their combined fan base, the collaboration aimed to attract both comic book enthusiasts and boxing fans, ultimately resulting in a unique and exciting crossover event.