There's so much music out there. So many genres. So many bands and DJs. It's getting to a point now where they're all starting to sound SLIGHTLY similar. For example, I text my mate to invite him to a James Blake gig and get a reply with "Is he the guy that sings 'Goodbye my lover?'". So if you don't know your Jessie J from your Jessie Ware then to a certain extent, fair do-s but lets see what other trip hazards there are out there...
James Blake vs James Blunt
Speech Debelle vs Wild Belle
NineTails Vs Nine Black Alps
Jessie J Vs Jessie Ware
Tribes vs The Other Tribe
Kills vs Killers
Kooks vs Kinks
SBTRKT vs TNGHT
Fake Club Vs Flake Blood
Blackeye Vs Black Eyed Peas
Angel Vs Angel Haze
Tinchy Stryder Vs Tinie Tempah
The Strypes Vs The White Stripes
Temples Vs Temple Songs
Foxes Vs Fleet Foxes Vs Foxygen
Zedd vs Zeds Dead
Zedd vs Zeds Dead
...and I'm sure there's more. Comment to add your own.