Demi Lovato continued her trip to London with a showstopping set at G-A-Y.
The American singer was invited on stage by club owner Jeremy Joseph and performed some of her most popular songs before bursting into her version of Frozen's 'Let It Go'.
Across town, Denise van Outen was celebrating her 40th birthday with dinner at Gilgamesh restaurant in Camden. She was joined by celebrity friends including Lydia Bright, Kara Tointon and a heavily pregnant Kimberley Walsh.
In the US, Kelly Osbourne and Rumer Willis were among guests attending the 2014 Trevor Project NextGen Prom held in Los Angeles. Willis wore a one shoulder white gown and performed at the event, whilst Osbourne was sporting a brace on her right foot.
Elsewhere, Jessie J performed to a sell-out crowd in Madrid. The singer tweeted that she was nervous about the event as she was debuting music from her upcoming third album. Meanwhile, Jennifer Lopez performed at the Kiss 108's Kiss Concert in Massatusetts wearing a tasselled bodice.
