Ellie Goulding Reveals All About Bruno Mars' Exercise Regime!
Chris Brown's on-off girlfriend also talks her "battle" with Rihanna and is Keira Knightley competition for Katy Perry? Find out here...
The model told BET's Keke Palmer she felt like she was "fighting a battle" with RiRi and her 14 million fans online, before breaking into tears.
Following her recent World Cup antics, we wouldn't want to be on the receiving end of Rihanna's competitive side….