Beyonce shows her diva side on and off the stage @ BBC Live

Diva Alert!!

Beyonce gave a trademark awe-inspiring performance at the BBC Chart Show Live in Brighton on Sunday - but it was her strict demands backstage that caught all the attention.After requesting her dressing room be exactly 78 degrees fahrenheit, a source tells the Mirror: "Beyonce wants to make sure her vocal chords are in tip-top condition so she needs the temperature to be just right."Among the list of must-haves backstage, the 25-year-old singer demands Honeynut Cheerios, turkey sandwiches, unlimited Pepsi and Diet Pepsi and a two-man "love seat".