Joss Whedon and Twilight

I know that some of us are Joss Whedon fans (the creator of Buffy the Vampire slayer, Angel, Dr. Horrible Sing-A-Long Blog, Firefly). Anyhew....Joss has done two musicals for this shows, Buffy and Dr. Horrible.

Now my question is...from those two musicals what can you see the characters/actors from Twilight singing if they were put into those roles?

BTVS- Once More With Feeling
1. Overture/Going Through the Motions
2. I've Got a Theory/Bunnies/If We're Together
3.The Mustard
4. Under Your Spell
5. I'll Never Tell
6. The Parking Ticket
7. Rest In Peace
8.Dawn's Lament
9. Dawn's Ballet
10. What You Feel
11. Standing
12. Under Your Spell/Standing-Reprise
13. Walk Through The Fire
14. Something To Sing about
15. Where Do we Go From Here?


Dr. Horrible Songs

1.My Freeze Ray
2. Bad Horse Chorus
3. Caring Hands
4.A Man's gotta do
5. My Eyes
6. penny's song
7. Brand New Day
8.So They Say
9. Everyone's a hero
10.Slipping
11. Everything You Ever