Melbourne: A new do-it-yourself nail painting is the latest craze after Katy Perry was seen wearing images of her former husband Russell Brand and US president Barack Obama on her fingertips.

The 28-year-old singer has also been photographed with caviar and 3-D sushi nail art. Italian cosmetics brand Layla`s Caviar Effect, which is significantly less expensive than a salon manicure at 19.95-dollar-a-bottle, is poured on to freshly-painted nails.

While it looks like the colourful cake decorations 100s and 1000s, it is actually multi-coloured glass micro-beads that are held in place with a regular top-coat nail varnish, a website reported.

Make-up artist Michelle MacDonald said that trends like caviar nail art became popular with teenagers and young women who learnt about it online.