Katy Perry has shown off her new royal wedding-themed nails on Twitter. The 'E.T.' singer took to the social networking site after yesterday's ceremony and treated fans to a glimpse of her latest handiwork, which involved pasting pictures of newlyweds William and Kate, several lone images of the Prince and a baby photo featuring his late mother Princess Diana onto her nails.The 26-year-old also joined the wealth of celebrities congratulating the couple by including a caption saying: "In honour of the Royal Wedding, I present you... My royal NAILS! CONGRATS!" Perry, who previously threatened to crash the royal wedding, earlier retweeted a message from one of her followers, simply saying: "RT if u always wanted to be a princess (sic)."Perry attached images of husband Russell Brand to her nails last September in celebration of their first anniversary.
