f(x)

1 - Hot Summer

2 - ? ??? (Rum Pum Pum Pum)

3 - Electric Shock

4 - Red Light

5 - 4 Walls

6 - ?? (Butterfly)

7 - Hard But Easy

8 - ?? (???: Shadow)

9 - Just a feeling

10 - Dangerous

11 - �Is It OK?

12 - Gangsta Boy

13 - Summer Lover

14 - Wave

15 - It's Me

16 - Sweet Witches

17 - Ti�n Mi Mi

18 - ??? (Vacance)

19 - ??? (Jet)

20 - Calling Out

21 - ??? (Spit It Out)

22 - Surprise Party

23 - When I'm Alone

24 - La ChA Ta

25 - Cash Me Out

26 - Diamond

27 - You're My Destiny

28 - 1, 2, 3

29 - Beautiful Goodbye

30 - Puzzle Bubble

31 - Sorry (Dear Daddy)

32 - Step

33 - Deja Vu

34 - So Into U

35 - Boom Bang Boom

36 - Glitter

37 - Beautiful Stranger

38 - All Mine

39 - Mr. Boogie

40 - Let's Try

41 - Snapshot

42 - Milk

43 - Spread Its Wings

44 - Airplane

45 - Traveler (feat. Zico)

46 - Toy

47 - NU ABO

48 - Goodbye Summer (feat. D.O)

49 - Step By Me

50 - Me+U

51 - 4 Walls (Japanese Version)

52 - Love Hate

53 - COWBOY

54 - Papi

55 - Rude Love

56 - Thrill Love

57 - ?? (Love)

58 - ?? ?? ? ?? (No More)

59 - Lollipop (feat. SHINee)

60 - Errand

61 - Dracula

62 - Chu~

63 - Chocolate Love

64 - Ending Page

65 - Stand Up !

66 - Kick

67 - All Night

68 - Hot Summer (Japanese)

69 - Pinocchio (Danger)

70 - ??? (Signal)

71 - ?? ?? (Paper Heart)

72 - My Style

73 - X

74 - Ice Cream

75 - Heartbeat

76 - ??? (Rainbow)

77 - Pretty Girl

78 - Wish List (12? 25?)

79 - I Love You, I Love You

80 - Zig Zag