Is it suitable for a fifties theme, a seventies theme or both? We think it's absolutely fine for both and welcome Grease costumes as a perfect movie theme solution for dressing up too! Here you'll discover a massive collection of officially endorsed Grease fancy dress covering all the major characters from the famed musical. Hen parties love dressing as the Pink Ladies and now you can too. Perhaps you're a T-Bird? We have that sorted for you. Take a look now, whatever you need you'll find a Grease costume suitable for the job.