Issue: #20
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 ma...
Creators: Dick Giordano, Paul Kupperberg, Carmine Infantino, Julius Schwartz, Gene D'Angelo, Bob Oksner, E. Nelson Bridwell, Rod Ollerenshaw
Characters: Superman, Zatanna, Hal Jordan, Aquaman, Barry Allen, Cyborg, Red Tornado, Beast Boy, Black Canary, Green Arrow, Starfire, Supergirl, Donna Troy, Elongated Man, Ray Palmer, Terra, Firestorm, Katar Hol, Phil Decker