By Jennifer Pearson
Published: 00:18 EST, 2 May 2014 | Updated: 09:01 EST, 2 May 2014
They are two of the biggest divas in the music industry.
But as Jennifer Lopez and Rihanna attended the iHeartRadio Awards on Thursday night, it was a case of who was the most bootylicious of the pair as they posed together for pictures backstage.
The duo, who both went for eye-catching outfits for the occasion, posed back-to-back with their derrieres touching, at the inaugural awards.
Who's the most bootylicious of them all? Jennifer Lopez ad Rihanna compared curves as they posed backstage at the iHeartRadio Music Awards in Los Angeles on Thursday night
However, while Rihanna drew attention in her sheer dress, she was no competition for Jennifer, who is famous around the world for her curvy posterior.
Jennifer, 44, looked incredible for the NBC awards, held at Los Angeles' Shrine Auditorium, in a white-hot, sleeveless number.
Jennifer was dripping glamour from her straightened long locks to her pointy neutral pumps, but the dress captured most of the attention.
They got back: Jennifer had fun posing with sexy and lacy Rihanna, who picked up the Artist Of The Year award
Stars align: Ryan Seacrest, who executive produced the awards, looked more than happy to be flanked by superstars Rihanna and J-Lo for a picture
Come hither: Jennifer posed seductively for the camera while showing off her curves to their best advantage
The halterneck frock sparkled with an intricate beaded design that featured cut-out details and thigh-trailing hemline.
Smoky eye shadow enhanced her dark eyes and her skin was luminous and youthfully smooth.
And Jennifer's outfit ensured that everyone was looking the moment the Bronx-born diva strolled backstage at the show, executive produced by her American Idol host Ryan Seacrest.
But Rihanna, who won the Artist Of The Year award, did give Jennifer a run for her money in an entirely sheer lace number, which displayed her underwear beneath.
Heavy on the sexy: The 44-year-old singer's frock for the awards event was a dazzling, beaded, halterneck design with sheer cut-out panels
They've met before: The American Idol judge presented the trophy to the Artist Of The Year with her American Idol host Ryan Seacrest, who also executive produced the inaugural awards show
She's a winner: J-Lo celebrated as Rihanna held up her trophy for Artist Of The Year as co-presenter Ryan Seacrest looked on
Rihanna teamed her outfit with a hairstyle that appeared to have been inspired by Orange Is The New Black character 'Crazy Eyes'.
Just a few hours earlier, Jennifer had taped American Idol wearing another skintight white frock with long sleeves and laces down the front.
For her appearance on the Fox singing competition, Jennifer dazzled in a clingy white dress with laces done up the front.
Enough to go around: The gorgeous star also gave a congratulatory hug to iHeart Innovator Award recipient Pharrell Williams
Two shows: J-Lo and Ryan taped American Idol and then rushed over to the iHeart Radio Awards
Big hug: Jennifer gave Ryan a hug good-bye before she left
Jennifer's curves were clearly outlined as she crossed the parking lot and headed to the stage in her ultra-high, gold heels, showing off her shapely limbs.
She sipped a bottled water using a straw so as not to mess her painstakingly applied make-up.
Although white is usually considered a non-colour, it definitely suited Jennifer on this starry night.
Lovely in her laces: Jennifer showed off her shapely limbs in a skintight, lace-up white number ahead of the American Idol taping
Water baby: Jennifer sipped a bottled water and used a straw so her perfectly applied make-up wouldn't get messed before she was due to tape the singing talent show
All that glitters: Jennifer headed to the Idol taping in her shiny gold heels alongside fellow judge Keith Urban
Traffic stoppers: J-Lo gave a traffic officer a high-five outside the awards show
IHEARTRADIO AWARDS 2014: FULL LIST OF WINNERS
Hip-Hop/ R&B Song of the Year
"Pour It Up" Rihanna
EDM Song of the Year
"Wake Me Up" Avicii
Alt Rock Song of the Year
"Demons" Imagine Dragons
Best Lyrics
"Wrecking Ball" Miley Cyrus
Innovator Award
Pharrell Williams
Young Influencer Award
Ariana Grande
Instagram Award
Austin Mahone
Artist of the Year
Rihanna
Country Song of the Year
"Boys 'Round Here" Blake Shelton
Song of the Year
"Stay" Rihanna feat. Mikky Ekko
Best New Artist
Lorde
Best Fan Army
Rihanna Navy
Best Collaboration
"Timber" Pitbull feat. Ke$ha
Country Song of the Year
"Boys 'Round Here" Blake Shelton
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