Battle Of The Divas Jennifer Lopez, Nicole Scherzinger
They're judges on rival talent show in America but it was up to 75,000 music fans at London's Wembley Stadium Britain to decide who was the best after both Nicole Scherzinger and Jennifer Lopez performed at the Summertime Ball.
The pair was having a diva face-off on the bill at the Capital Radio-organised pop concert on a star-studded bill - but the jury was out on just who had the best songs and the best outfits too.
Former Pussycat Doll Nicole, 32, who has just started her job on the X Factor USA, was first up on stage, wearing a low-cut feathery number, despite the chilly rainy weather.
Despite probably worrying about how well her boyfriend Lewis Hamilton was doing in the Canadian Grand Prix - terribly, as it turned out - she was pretty much note perfect as she belted out her short set.
It included her two recent UK No. 3 hit singles Poison and Right There, her No. 1 Don't Hold Your Breath, as well as the Pussycat Dolls 2005 smash Don't Cha and at one point, was carried aloft by hunky male dancers.
She arguably got one over her older rival Jennifer too by changing into a red and black tasselled dress and getting Enrique Iglesias onstage with her.
However, 41-year-old mother-of-two J-Lo was determined not to be outdone, and showed she meant business when she took to the stage in a black jewelled basque with combat trousers and bovver boots.
She romped through tracks including her No. 1 hit Get Right, as well as classics Waiting For Tonight and Jenny From The Block.
After her most recent single I'm Into You though, she changed into in a racy beige basque, jewelled tights and over-the-knee boots to launch into her No. 1 hit ‘On The Floor’ - one more song than Nicole had in her set.
J-Lo also has more talent show experience than Nicole too, having got an entire series of American Idol under her belt, whereas Nicole has just got a few outings as a guest judge on the UK's X Factor under hers.
Nicole has also recently spoken of her joy at being promoted to a judge after Cheryl Cole was sacked. She was 'ecstatic' after she given a judging role in the US X Factor.The former Pussy Cat Doll was speaking at her debut appearance in New Jersey.
She told The Sunday Mirror: 'I wanted to be part of the show. I love the show, I believed in the show, I believe in Simon.
'When they proposed the idea of me being a judge, I couldn't have been more ecstatic. I absolutely think the dynamic is working and this is a new chapter in my life and I'm so grateful,' she told the Sunday Mirror.
And Jennifer had had something of a warm-up when she performed On The Floor on the live final of So You Think You Can Dance the night before, showing off her incredible figure in a skintight sparkly catsuit.
Other stars that performed at the bash today included Jessie J, who took the stage despite badly injuring her foot in rehearsals, JLS, and the aforementioned Enrique.
He whisked fan Sophie Elphick, 18, out of the audience onto stage to sing for her, before kissing her on the cheek.
Also entertaining the crowds in the bucketing rain were Katy B and Cee Lo Green and the show was hosted by the likes of Capital Radio's Johnny Vaughan and Lisa Snowdon.
Edited by GABRIELLA OSAMOR