Well, then tell me one artist who brings the warmth of soul into the mainstream of Electronic Pop? Kanye, no, Grimes, can I have a laugh, Gaga nope. She is the first of today. Maybe the next is something like Spandau Ballet or OMD in the 80's.
So that makes her Avant Garde? Because she brought warmth of soul into mainstream electronic pop?
This is Avant Garde
not
and Grimes is more Avant Garde then Lorde and makes better music but she is not mainstream
1 Unorthodox Jukebox Bruno Mars [4 269 200] (5,510.900)
2 The 20/20 Experience Justin Timberlake [3 642 400]
3 Random Access Memories Daft Punk [3 511 700]
4 The Marshall Mathers Lp 2 Eminem [3 257 400]
5 The Truth About Love Pink [3 246 200] (5,873.000)
6 Midnight Memories One Direction [3 026 600]
7 Night Visions Imagine Dragons [2 472 800]
8 To Be Loved Michael Buble [2 447 500]
9 Take Me Home One Direction [2 381 800] (5,643.600)
10 Babel Mumford & Sons [2 282 300] (5,273.500)
11 Prism Katy Perry [2 068 200]
12 The Heist Macklemore & Ryan Lewis [1 963 500]
13 Beyonce Beyonce [1 872 000]
14 Nothing Was The Same Drake [1 730 900]
15 Crash My Party Luke Bryan [1 619 700]
16 Unapologetic Rihanna [1 592 600] (3,522.700)
17 The Lumineers The Lumineers [1 543 300]
18 Magna Carta... Holy Grail Jay-z [1 507 200]
19 Red Taylor Swift [1 461 800] (5,732.400)
20 Racine Carree Stromae [1 453 500]
21 All The Little Lights Passenger [1 452 400]
22 Here's To The Good Times Florida Georgia Line [1 416 800]
23 Les Miserables: Highlights From The Motion Picture
Soundtrack [1 386 100]
24 Artpop Lady Gaga [1 378 400]
25 Bangerz Miley Cyrus [1 376 700]
Miley's sales are nothing for someone who dominated 2013 the way she did.
All the way @ #25.
and in the good way. 
