Special issue celebrating the anniversary of Kara Zor-El's arrival on Earth! A mysterious villain in a hat and trenchcoat makes the anniversary an unpleasant one for Supergirl in "Celebration!" Superman appearance. Includes a very brief cameo of the New Teen Titans and the Justice League of America.
What do The Justice League of America and The Teen Titans have in store for Supergirl? The answer may surprise you!
- Story continues from Action Comics #555.
- A Parasite clone appears.
- Justice League of America and Teen Titans cameo appearances.