Interesting bit of musical introspection

Someone on last.fm suggested posting what country your top 50 artists are from. I'm curious, so here are the results:

Japan (25)
1 B'z
2 THE BLUE HEARTS
4 BUMP OF CHICKEN
5 GReeeeN
7 Perfume
8 アンジェラ・アキ (Angela Aki)
9 嵐 (Arashi)
11 古代祐三(Yuzo Koshiro)
14 YUI
15 L'Arc~en~Ciel
16 ORANGE RANGE
20 HIGH and MIGHTY COLOR
21 SINGER SONGER
23 関ジャニ∞ (Kanjani 8)
27 FUNKY MONKEY BABYS
28 LUNA SEA
29 大塚愛(Ai Otsuka)
31 ロードオブメジャー (Road of Major)
35 MONKEY MAJIK
36 nobodyknows+
38 KinKi Kids
42 レミオロメン (Remioromen)
44 ケツメイシ (Ketsumeishi)
46 TOKIO
51 NEWS

USA (12)
3 Neil Voss
13 The Killers
17 God of Shamisen
18 Flogging Molly
22 Acid Tetris Music Team
24 Bowling for Soup
25 Leigh Nash
32 Papa Roach
34 The Hooters
38 Nelson
43 Jonathan Coulton
47 Guster

Canada (9)
6 The Weekend
10 Billy Talent
12 Two-Minute Miracles
19 Raffi
26 Sarah Harmer
40 Stan Rogers
41 The Lowest of the Low
45 Treble Charger
48 Blarney (they're from my hometown!)

UK (2)
49 Natasha Bedingfield
51 Sandi Thom

Brazil (1)
30 Serapis Bey

Bermuda (1)
36 Heather Nova

Columbia (1)
50 Carolina Marquez

Australia (1)
51 Merril Bainbridge