Rihanna has performed for the first time since she was allegedly assaulted by her on/off boyfriend Chris Brown. The "Rehab" singer - who was dressed in a black Dolce and Gabbana power suit - joined Kanye West on stage at the Metropolitan Museum of Art Costume Institute Gala in New York on Monday.

The pair performed a duet of Kanye's song "Say You Will" before Rihanna belted out an emotional rendition of her hit "Live Your Life."

Justin Timberlake has spent $60,000 on jewelry for his girlfriend Jessica Biel. The singer splashed out the huge sum on a pair of Montblanc diamond earrings and a bespoke diamond Chanel J12 watch and presented them to the 27-year-old actress before the Metropolitan Museum of Art Costume Institute Gala in New York on Monday.

A source said: "Justin splashed out on the trinkets to show his devotion."

The 25-year-old British actress, who stars in new horror movie "The Wolf Man," found it impossible to make the high-pitched shrieks required during shooting and resorted to "heavy breathing" to sound frightened.

The actress told Empire magazine: "I'm not a great screamer. I don't have a good upper range. I'm sure they're going to have to dub me with someone who has better lungs - or more feminine lungs, at least! I just did a lot of gasping and heavy breathing, which might have to do."

She burst onto the pop landscape as the pouting, ice-queen chic member of The Spice Girls, but in the eleven years since the girl group released their first single, "Wannabe,” Victoria Beckham has become a whole lot more than just Posh Spice.

After guest designing for denim brand Rock & Republic, she started dVb, her denim and sunglasses line. Next up? Beckham is slated to star in Marc Jacobs' Spring ads.