'Talk That Talk' singer has fallen foul of the company's family-friendly image
Black Keys, Frank Ocean, Katy Perry and Skrillex both get nods for the September bash
The pop star says she'll be 'creating something really special'
Calvin Harris, A$AP Rocky and Cher Lloyd also played well received sets at the Hyde Park event
Singer also blames Berdon LLP for 'shoddy bookeeping' and an ongoing audit by the IRS
'Everybody has to put the past behind them,' says 'Talk That Talk' star's dad
Singer tweets tribute to 'Gran Gran Dolly'
Singer tweeted that she had to 'roam the streets' after being kicked out of her hotel at 6am
Plan B, Florence And The Machine and Dizzee Rascal had earlier performed stellar sets on the weekender's closing day
Tinie Tempah, Plan B, Azealia Banks, Bombay Bicycle Club will also play the event today