Broadway

2. The song played for the dance competition in Grease, best known for being featured in Dancing with the Cherry Hill Stars in 2011
5. The university for the young adults of Oz
8. Veronica Sawyer's girlfriend, I mean best friend
13. The brand of Hairspray that sponsors the Corny Collins Show
15. The main heroine of Phantom of the Opera
16. Elphaba's love interest who eventually becomes the scarecrow
17. The last name of the Heather that Veronica and JD kill by feeding her drain cleaner
18. The host of the dance TV show that Tracy Turnblad wants so badly to be on
21. The box number that the Phantom of the Opera insists be left empty
23. What Elphaba's mother drinks that causes Elphaba to be born with green skin

1. Alison's girlfriend at Oberlin in Fun Home
3. Elphaba's disabled sister who eventually turns into the evil Wicked Witch of the East and is crushed by Dorothy
4. The useless police officer in West Side Story about whom the Jets sing
6. The composer for West Side Story and many other musicals. He once said "To be a success as a Broadway composer, you have to be either gay or Jewish. I'm both."
7. The name of the high school the characters in Grease attend
9. The city where Hairspray takes place
10. The most iconic dance from West Side Story
11. The specific dance Tony and Maria are doing when they meet at the gym
12. The lyricist for Fun Home and several other musicals (last name)
14. The famous drag queen who originated the role of Edna Turnblad in the first, non-musical Hairspray film
19. The recently-deceased Broadway legend who wrote the lyrics for many iconic musicals including West Side Story
20. The professor in My Fair Lady who helps Eliza Doolittle with her elocution
22. The exceedingly annoying Broadway composer with an enormous ego who now writes songs for Disney movies