Also in the capital, Amelia Lily performed at G.A.Y. The former X Factor finalist sung her new single, which was released this morning.
Keeping with the theme of Girl Power, Geri Halliwell, Emma Bunton and Melanie Chisholm dined together at the Little House restaurant in London. Mel C later tweeted a picture of the three girls and gave a shout out to Victoria Beckham and Mel B, who were missing from the get-together.
At the Toronto International Film Festival, Gwyneth Paltrow, Halle Berry and Johnny Depp were in attendance for the premieres of their new movies. Johnny Depp looked effortlessly cool as he posed for pictures on the red carpet.
Back in London and Lady GaGa was at the Twickenham Stadium for her Born This Way Ball. The US songstress didn't disappoint as she displayed numerous outrageous costumes.
On the Reading Pride stage, Kitty Brucknell channeled Madonna as she strutted her stuff in the sunshine, while in Primrose Hill, Sarah Harding also enjoyed the weather as she attended the PupAid Dog Show.
Finally, Rihanna spent a late night at a tattoo studio in London. She left to return to her hotel in towering heels and bright purple lipstick.
See all of these pictures in our gallery below.