Singers Jessie J, Mel B, Nicole Scherzinger and Tulisa Contostavlos lit up the red carpet at the 2014 Mobo Awards.
Bang Bang singer Jessie, 26, flashed skin in a low-cut gold Emilio Pucci trouser suit while X Factor judge Mel, 39, wore a white dress slashed to the thigh.
Scherzinger, 36, showed off her figure in a skin-tight black leather dress and Contostavlos, 26, chose a black crop top, graphic print skirt with mermaid hem and heels.
Jessie - who has released her third album, Sweet Talker - said: "I'm so proud to be here and to open the show. This is one of the best years of my life. It's been so fulfilling. My heart feels so full."
Other music stars who walked down the red carpet at the SSE Arena in Wembley included Little Mix singers Leigh-Anne Pinnock and Jade Thirwall, Sam Smith, Professor Green, Alexandra Burke and Ella Eyre.
X Factor acts Andrea Faustini, Fleur East, Paul Akister and Jack Walton also stepped out.
Jessie J, who is nominated for best female, kicked off the show, shown live on ITV2, with a medley of her hits Bang Bang and Burning Up.
The ceremony, now in its 19th year, has returned to London after a five-year hiatus.