Jennifer Lopez dazzled in a sheer gown during Wednesday's “American Idol” season finale. The 45-year-old singer and actress showed off her famous curves in the barely-there number. It had a sparkly bikini-style top and a skirt that strategically covered her body, Elle reported.

The songstress wowed in the ensemble as she performed Rihanna’s chart-topping pop track “Diamonds” with co-judges Keith Urban, 47, and Henry Connick Jr., 47. The dress had a faux jewel-encrusted halter neck, as well as a thin triangular cutout surrounding her belly button, with silver trims. Jennifer upped the glam quotient in sparkling hoop earrings and her tambourine completed the ensemble.

Her flawless makeup consisted of bronze blush, glittery silver eyeshadow and lots of lip gloss. Her long brunette tresses were kept open and center-parted for the high-energy performance. The sheer gown also showed off her shapely legs and toned arms. Jennifer flaunted her white-silver manicure while continuing her performance.

Lopez's performance included a cover of Bruno Mars’ smash hit “Locked Out of Heaven.” She sang while shaking the tambourine, country megastar Urban was on his guitar and Connick Jr. took over the piano. The trio will return again together for 15th and final season of the show in 2016.

Jennifer also performed Prince Royce’s latest single “Back It Up” alongside Pitt Bull in a form-fitting and cleavage-baring black dress. The little black dress had a flared skirt and was sleeveless. She styled her hair into a half up, half down do and accessorized her look with several bracelets, rings and hoop earrings. Earlier, the songstress arrived in a sheer lace dress for the finale. The judge made the most of her famous assets in the gorgeous flowing floor-length gown as she arrived at the Dolby Theatre in Hollywood. She paired the dress with black hotpants. The Zuhair Murad dress is from the designer’s Fall Winter 2015 collection. The long-sleeve dress featured intricate embellishment and sheer lace panels. Jen’s hair was swept back into a messy half up 'do and statement drop earrings in black.

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