just solo?

1. Drake (1,361)
2. Kanye West (727)
3. Miguel (515)
4. Childish Gambino (505)
5. The Weeknd (366)
6. Frank Ocean (304)
7. Justin Bieber (297)
8. Usher (284)
9. Zedd (282)
10. Skrillex (277)

And if I don't count the last two, Joshua Radin and Elliott Smith would be next.

1. Kanye West
2. Jay Z
3. Chris Brown
4. Sam Smith
5. Troye Sivan ()

1. 1D
2. Imagine Dragons
3. Maroon 5
4. 5SOS
... That's all :$

I'm including male-fronted bands:

1. Vampire Weekend
2. Blood Orange
3. The Smiths
4. Arctic Monkeys
5. Joy Division
6. Kanye West
7. Drake
8. Dead Man's Bones
9. Passion Pit
10. James Blake

1) Justin Bieber
2) Frank Ocean
3) Tyler, the Creator
[lol this is so not surprising]
4) Justin Timberlake
5)The Weeknd
6) Childish Gambino
7)Chance the Rapper
8) Kid Cudi
9) Drake
10) Pharrell Williams

Solo Male Artists

1. Flying Lotus
2. Jai Paul
3. James Blake
4. Todd Terje
5. Kanye West
6. Rustie
7. Frank Ocean
8. Nicolas Jaar
9. Chance the Rapper
10. Kendrick Lamar

1. Frankmusik 34,790
4. Mika 2,521
7. One Direction 1,981 (Group)
10. Owl City 1,494
11. Simon Curtis 1,450
21. Western Jaguar 939
23. Neil Patrick Harris 863
27. Maroon 5 714 (Group)
28. Temposhark 683
42. Coldplay 401 (Group)
44. Bastille 361(Group)
51. Port Blue 311
53. Hot Problems 301 (Group)
54. Shoji Meguro 294
55. Smallpools 290 (Group)
59. The Killers 247 (Group)
60. Kentö 243
61. Skillet 230 (Group)
62. Imagine Dragons 227 (Group)

Did a few extra.

I don't use lastfm but Jay Z, Kendrick, and Kanye would probably be top 3.

1. - 31. The Script (190)
2. - 40. Maroon 5 (137)
3. - 44. Bruno Mars (127)
4. - 53. One Direction (97)
5. - 54. Olly Murs (95)
6. - 55. Fall Out Boy (94)
7. - 57. Bastille (81)
8. - 59. Arctic Monkeys (78)
9. - 67. Imagine Dragons (68)
10 - 70. Mitchel Musso (63)

Had to include all-male groups or else I doubt I'd even have 10 solo-males