Heart beating in my chest.

List of songs I'm going to be running to for: 21 km, 13 miles, 21,000 metres, 68,897 feet. Tomorrow. My heart will never have pumped so fast for so long in my life. It's kind of... dangerously exciting.

1. The Aviator - K-OS

2. Romantic Rights - Death From Above 1979

3. Sex on Fire - Kings of Leon

4. D.O.A. - Jay-Z

5. Needy Girl - Chromeo

6. Ares - Bloc Party

7. I Gotta Feeling - Black Eyed Peas

8. Rockstar 101 - Rihanna

9. Pumpkin Soup - Kate Nash

10. Sweet Dreams - Beyonce

11. Keep the Car Running - The Arcade Fire

12. Runaway - Janet Jackson

13. Don't Stop the Music - Rihanna

14. Little Secrets - Passion Pit

15. Run this town - Jay-Z

16. You've got the love - Florence and the Machine

17. The Con - Tegan and Sara

18. Sweetness - Jimmy Eat World

19. Foundations - Kate Nash

20. Tik Tok - KeSha

21. Day 'N' Nite (Crookers Remix) - KiD CuDi

22. Fried My Little Brains - The Kills

23. Feel it in My Bones (Tiesto remix) - Tegan and Sara

24. Breakin' Dishes - Rihanna

25. Heartbeats - The Knife

26. Can't Get You Out of My Head - Kylie Minogue

27. Lovegame - Lady GaGa

28. Another Runaway - Ladyhawke

29. Valerie - Mark Ronson featuring Amy Winehouse

30. The Way you Make Me Feel - Michael Jackson

31. Cult Logic - Miike Snow

32. Do it - Nelly Furtado

33. Sleepyhead - Passion Pit

34. Back in your Head - Tegan and Sara

35. You and Your Hand - Pink

36. Breath and Stop - Qtip

37. Rude Boy - Rihanna

38. Rising Down (Feat. Mos Def) - The Roots

39. Telephone - Lady GaGa & Beyonce

40. Gimme Sympathy - Metric

41. Brother Down - Sam Roberts

42. Way I Are (feat. Keri Hilson) - Timbaland

43. Sexy Bitch - David Guetta feat. Akon

2.6 hours of songs, to run. Feeling excited, confident, and anxious.