Paris Hilton wore a jewelled bodice and black suspenders as she performed a DJ set at Brazil's Pop Music Festival. Before arriving at the arena, she tweeted: "On my way to The #PopMusicFestival! I have never been so nervous & excited all at once!"
Meanwhile at the Isle of Wight Festival, Elizabeth McGovern, known to millions as Countess Cora Grantham in Downtown Abbey, performed with Mike Peters and his Big Country band. Elizabeth mingled with the crowds and happily posed for photos with fans.
Finally, Nicole Scherzinger missed boyfriend Lewis Hamilton's Grand prix race to celebrate her birthday in Las Vegas. Nicole took a break from her judging duties on The X Factor UK to party with friends at the TAO nightclub.
See these pictures and many more in our gallery below: