Gaga’s PA to release a tell-all book

Lady Gaga’s ex-assistant has decided to spill the beans on her time with the tea-cup carrying singer.

And she sure doesn’t hold back!

Angela Callahan – who says she quit after a telling off from Gaga for bringing her the wrong pair of tights – alleges that a lonely Gaga would make her sleep with her and that they even showered together to save time in the morning.

She says in her tell-all book Poker Face: The Rise and Rise of Lady Gaga that the queen of pop was a tough boss and even sacked up to 150 people in just 10 months.

Gaga is yet to comment on these revelations…