f(x)

1 - Hot Summer

2 - Electric Shock

3 - Red Light

4 - ? ??? (Rum Pum Pum Pum)

5 - 4 Walls

6 - ?? (Butterfly)

7 - Hard But Easy

8 - ?? (???: Shadow)

9 - Ti�n Mi Mi

10 - �Is It OK?

11 - Sweet Witches

12 - Just a feeling

13 - ??? (Vacance)

14 - Wave

15 - It's Me

16 - Dangerous

17 - ??? (Spit It Out)

18 - Gangsta Boy

19 - Calling Out

20 - Cash Me Out

21 - Summer Lover

22 - ??? (Jet)

23 - Diamond

24 - Surprise Party

25 - Puzzle Bubble

26 - La ChA Ta

27 - You're My Destiny

28 - When I'm Alone

29 - 1, 2, 3

30 - Step

31 - Beautiful Goodbye

32 - Sorry (Dear Daddy)

33 - So Into U

34 - Toy

35 - Boom Bang Boom

36 - Step By Me

37 - Airplane

38 - Deja Vu

39 - Glitter

40 - 4 Walls (Japanese Version)

41 - Goodbye Summer (feat. D.O)

42 - Papi

43 - Let's Try

44 - Me+U

45 - Mr. Boogie

46 - Milk

47 - Snapshot

48 - Beautiful Stranger

49 - Traveler (feat. Zico)

50 - ?? (Love)

51 - COWBOY

52 - All Night

53 - NU ABO

54 - Spread Its Wings

55 - Chocolate Love

56 - Dracula

57 - Lollipop (feat. SHINee)

58 - All Mine

59 - Errand

60 - ?? ?? ? ?? (No More)

61 - Thrill Love

62 - Kick

63 - Ending Page

64 - ??? (Signal)

65 - Stand Up !

66 - Pinocchio (Danger)

67 - ?? ?? (Paper Heart)

68 - Rude Love

69 - Hot Summer (Japanese)

70 - Chu~

71 - ??? (Rainbow)

72 - Love Hate

73 - Ice Cream

74 - My Style

75 - Zig Zag

76 - Wish List (12? 25?)

77 - X

78 - Heartbeat

79 - I Love You, I Love You

80 - Pretty Girl