4. Christina Aguilera
Christina Aguilera's ugly diva behaviour has reared it's ugly head on NBC's The Voice singing series. The on-screen tension between herself and Adam Levine is blatant with her catty remarks and even taking it out on his team's contestants. A source on the The Voice stated that she requires foot massages at 30-minute intervals, keeps the rest of the crew waiting for up to two hours and insists on watching the playback of every single scene, demanding re-shoots if she thinks she looks heavy. Aguilera, arguably the shows biggest star, was reported to be earning $225,000 per hour triple that of her fellow judges when the show premiered in April 2011.
Christina Aguilera reportedly insists on a police escort because she refuses to waste her time sitting in traffic - she literally 'ain't got time for that.'
Back in her "Dirrty" days, Christina Aguilera filled her dressing room demands such as Flintstones chewables, votive candles and room temperature bottled water that was anything but Evian. Damn Christina! Why do you hate Evian so much?