Avril Lavigne,  Kelly Clarkson, Pink, NSYNC, A1 -and- many more.....
Matt Corby, Jason Mraz and Mumford & Son's 
Kelly Clarkson and Pink.
Awolnation, Ok Go, Die Antwoord ♥
Johnny Cash and John Newman
A Rocket to the Moon, Kutless, David Hodges, Hurts, Hedley
Panic! at the Disco, Nothing But Thieves, The Weeknd, PVRIS, Ed Sheeran, The 1975, Fall Out Boy
Avril Lavigne, Kelly Clarkson, Pink, -and many more
Avril Lavigne, Kelly Clarkson, Pink, -and many more
Boys Like Girls, Chris Brown, Ne-yo
Don't really have a favorite singer/band but I occasionally listen to bands/singers like:
Phill Collins
Depeche Mode
Scorpions
Evanescense
Muse
Keane
Robbie Williams
Amy Winehouse
Coldplay
Seal
Imagine Dragons
The Weekend
Ed Sheeran
Bruno Mars
The Cure
Chris Brown
Snoop dogg
Eminem
Whiz Khalifa
Jason Derulo
Usher
Beyonce
Red Hot Chilli Peppers
Lorde, Ed Sheeran, The Maine and The 1975
Le Mans, Marea, Camela and Mezquita