Singer Justin Bieber has sparked dating rumours with supermodel Naomi Campbell after they were spotted walking hand-in-hand backstage at her Fashion For Relief charity catwalk show.

The fashion show took place at The Theatre at Lincoln Center here Saturday, reports aceshowbiz.com.

The 20-year-old, who donned a black jacket over a long T-shirt, a pair of blue jeans and black boots, looked nervous as Campbell, 44, who was spotted in a black T-shirt that read 'Fashion Against Ebola', put her arm around his shoulder while posing for a photograph.

The fashion show was held to raise money for the Ebola crisis.

Some Hollywood stars like Paris Hilton, Michelle Rodriguez, Tyson Beckford, Kelly Osbourne, Brad Goreski and NeNe Leakes showed their support by walking the runway.

A second show will be held during London Fashion Week in March.