Meh. First few that come to mind...
Rihanna - Unapologetic
P!nk - The Truth About Love
Bruno Mars - Unorthodox Jukebox
Maroon5 - Overexposed
Lana Del Rey - Paradise
Ellie Goulding - Halcyon
Ke$ha - Warrior
First few that came to mind that are still recent-ish. There's good songs on each (well, according to me!).
Have you tried any country music or anything? xD
I don't know any bands on that but yeah.
Also, I just remembered, have you listened to Metric?
Night Asmek.
---------- Post added 2013-01-10 at 06:31 PM ----------
"There cannot be true dispair without hope." - Bane
What about CoMa?
I don't think it's on Wikipedia but it's like a dub/eletronic/chilly band/producer I believe.
I have about 25 songs of them on a playlist on YouTube here: http://www.youtube.com/playlist?list...eature=mh_lolz.
Some are remixes, some are from them, some are just ft..
This is one of my favourites from them atm: here.
Listen to the song I linked
"There cannot be true dispair without hope." - Bane
+ 14
Oh, how about Karmin's Hello EP?