Jennifer Lopez's Head-to-Toe Looks from Seasons 14 and 15 of American Idol

J.Lo proved pink can be sexy too in a cutout Fausto Puglisi dress with Casadei pumps and a Vhenier ring.

For her Old Hollywood-inspired outfit, Lopez turned to Elizabeth Taylor for inspiration and rocked a white Victoria Beckham dress with nude Christian Louboutin pumps.

Lopez rocked an ethereal sheer and nude dress with matching pumps and a bold, dark red lip. 

For a Season 15 finalists celebration, Lopez slipped into this stunning, shimmery red jumpsuit and paired the look with two Swarovski bangles and a look-at-me ring. 

To showcase her killer curves, Lopez rocked a sheer Thai Nguyen dress with matching Christian Louboutin pumps. 

For #HollywoodWeek, Lopez rocked a brown leather August Getty frock with matching Giuseppe Zanotti sandals.

For a round of auditions in Atlanta, Lopez wore '70s-inspired DVF floral pants and a sheer top.

For a round of Season 15 auditions in Little Rock, Lopez sported a tweet Alex Perry dress with matching Christian Louboutin pumps.

While checking out the talent in Philadelphia, Lopez slayed in a Thierry Mugler minidress and Casadei pumps. 

How to celebrate the show's Season 14 finale? A gorgeous black lace dress. The beauty rocked this Zuhair Murad number and paired it with Brian Atwood shoes. 

In true J.Lo fashion, the singer slipped into this scintillating sheer Charbel Zoe dress during her performance with Keith Urban and Harry Connick Jr.

While performing with Prince Royce and Pitbull during the season's final episode, Lopez donned a black Herve Leger top with a Zuhair Murad skirt and Giuseppe Zanotti heels. 

The singer wore a sexy Zuhair Murad jumpsuit with Versace platforms. The standout piece? Her Brigitte Bardot-inspired updo. 

Jennifer Lopez sizzled in a printed crop top and matching pants by Emanuel Ungaro, paired with simple black pumps from Jimmy Choo.

The singer and judge twirled in a billowing Blumarine dress and Gucci shoes. 

Lopez rocked a shimmering Nicolas Jebran long-sleeve minidress that she paired with nude Stuart Weitzman ankle-strap heels and gold Lana chandelier earrings.

The triple threat wowed in a not-so-standard LBD by David Koma, which she paired with metallic Casadei pumps.

The star went for understated sexy in a split-sleeve top from her namesake line for Kohl's ($48; available in May at kohls.com), paired with pleated embellished shorts also from her line ($48; available now at kohls.com) stacked bracelets, and strappy gold heels by Giuseppe Zanotti.

The star showed off her curves in a nude leather bustier dress by House of CB that fit like a glove. She paired the dress with sexy Christian Louboutin nude heels.

The star sparkled in a midnight blue Elie Saab romper that featured a multitude of sequins and slivers of sheer fabric, which she paired with suede Casadei pumps and a selection of Endless Jewelry.

Lopez wowed in high-waisted Rachel Zoe white pants, a lacy Misha Collection top, Giuseppe Zanotti shoes, and Jacob & Co. jewelry.

The femme fatal showed off her gorgeous gams in a bright orange Valentino dress, strappy Versace stilettos, a Monica Vinader and Jennifer Fisher bracelet, and a Vhernier ring.