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."