Jennifer Lopez in Paco Rabanne – ‘American Idol’ Top 5 to 4 Live Elimination Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 5 to 4 Live Elimination Show held at the CBS Studios Lot on Thursday (May 3, 2012) in West Hollywood, California.

The 42-year-old entertainer opted for a cap-sleeve silver metallic Paco Rabanne Spring 2012 collection top with black-and-red crystal and beaded embroidered embellishments on the shoulders paired with black fitted skinny stretch-twill Joseph ‘Diamond’ leggings pants with multiple asymmetrical diamond silver zipper details.  JLo accessorized the stylish ensemble with Rosark earrings, black and silver Hermés cuff bracelet, gold bracelet, multiple gold rings and merlot red suede Brian Atwood ‘Power Studs’ pumps.

Jennifer Lopez in Yeojin Bae – ‘American Idol’ Top 5 Live Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 5 Live Performance Show held at the CBS Studios Lot on Wednesday (May 2, 2012) in West Hollywood, California.

The 42-year-old entertainer wore a sleeveless cherry red silk faille Yeojin Bae Spring 2012 collection cocktail dress with a ribbed textured bodice and sheer contrast cream mesh pin tuck detail halter neckline panel which creates a deep v faux neckline.  The Australian designer’s figure-hugging knee length frock was accessorized with signature large gold hoop earrings, gold Sydney Evan chain bracelets, gold Pomellato ‘Love’ rings and nude Christian Louboutin ‘SEX’ pumps.

Jennifer Lopez in Lanvin – 2012 Mega Tour Press Conference Announcement

Jennifer Lopez joined Enrique Iglesias on stage for a press conference to announce their 13-city summer 2012 Mega Tour on Monday (April 30, 2012) at Boulevard3 Club in Hollywood, California.

The 42-year-old On the Floor singer wore a long sleeved banded tri-color nude, black and rose stretch silk lycra Lanvin Spring 2012 collection cocktail mini dress with an embroidered large Swarovski crystal embellished snake motif wrapped around her neck.  The short frock was accessorized with Kara Ackerman Designs earrings, multiple rings and black suede Giuseppe Zanotti thin ankle-strap double platform pumps.

Jennifer Lopez in Zuhair Murad Couture – ‘American Idol’ Top 6 To 5 Elimination Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 6 With Save To 5 Live Elimination Show held at the CBS Studios Lot on Thursday (April 26, 2012) in West Hollywood, California.

The 42-year-old entertainer rocked a long sleeved shiny black paillette-covered Zuhair Murad Spring 2012 couture collection cocktail mini little black dress with a high neckline and open back.  The sexy short LBD frock was accessorized with silver R+M earrings, Hellmuth ring, Cora ring and black spiky mesh Christian Louboutin ‘Picks & Co’ ankle-strap pumps with studded heels.

Jennifer Lopez in Temperley London & MICHAEL Michael Kors – ‘American Idol’ Top 6 Live Performance Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 6 Live Performance Show in CBS Studios on Wednesday (April 25, 2012) in West Hollywood, California.

The 42-year-old entertainer showed off her toned abs once again in a gold sequin Temperley London Fall 2012 collection cropped jacket paired with matching shimmering pair of MICHAEL Michael Kors gold sequin harem trousers.  The chic pants ensemble was accessorized with R+M stud earrings, gold Pomellato chain bracelet, matching gold Pomellato chain necklace, gold rings and gold and mesh garland glitter finish leather Jimmy Choo ‘Leila’ open-toe strappy sandals.

Jennifer Lopez in Milly – ‘American Idol’ Top 7 With Save To 6 Live Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 7 With Save To 6 Live Elimination Show on Thursday (April 19, 2012) in Hollywood, California.

The 42-year-old entertainer opted for a sleeveless white cowl-neck peplum stretch-crepe Balenciaga blouse paired with a bright jade green flared wide leg, high-waist Milly ‘Hayden Pintuck’ trousers.  The chic pants ensemble was accessorized with a thin powder blue Lisa Ho leather belt, gold hoop earrings, a Pomellato ‘Tango’ 18K rose gold and brown diamond chain bracelet, a Sydney Evan pyramid bracelet, colorful Jacqueline Nerguizian rings and black Giuseppe Zanotti platform heels.

Jennifer Lopez in Hervé Léger by Max Azria – ‘American Idol’ Top 7 Live Performance Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 7 With Save Live Performance Show on Wednesday (April 18, 2012) in Hollywood, California.

The 42-year-old entertainer showed off her amazingly toned six-pack abs in a short sleeved cut-out pewter metallic stripped bandage Hervé Léger by Max Azria Spring 2012 collection cocktail mini dress with gladiator vibe strategically-placed cut-outs, braided detail accents and a nude lining.  The super sexy Herve Leger short frock was accessorized with H. Stern diamond stud earrings, Renee Sheppard platinum bangle bracelets and rings, Pomellato ‘Tango’ 18K rose gold and brown diamond bracelet and nude Giuseppe Zanotti open-toe ankle strap strappy sandals.

Jennifer Lopez in Catherine Malandrino – ‘American Idol’ Season 11 Top 7 Live Performance

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 7 Live Performance show on Wednesday (April 11, 2012) in Hollywood, California.

The 42-year-old ‘Dance Again’ singer wore a long sleeved leather Catherine Malandrino Fall 2012 collection cocktail little black dress with peek-a-boo mesh horizontal paneling cut-outs.  The sexy knee length LBD frock was accessorized with large diamond stud earrings, diamond Sydney Evan ‘Love’ necklace, gold cuff bracelet, ankle bracelet and black Christian Louboutin ‘Asteroid’ spiked pumps.

Jennifer Lopez in Michael Kors – Casper Smart Birthday Dinner Date

Jennifer Lopez rocked a sexy skin tight dress while out to dinner with boyfriend Casper Smart to celebrate his birthday at Cecconi’s restaurant on Friday (April 6, 2012) in West Hollywood, California.

The 42-year-old American Idol judge rocked a sleeveless teal Michael Kors cocktail dress.  The knee length frock was accessorized with a gold necklace, multiple gold rings, a shiny silver clutch and nude strappy heels.

Jennifer Lopez in Lanvin – ‘American Idol’ Season 11 Top 8 to 7 Live Elimination Show

Jennifer Lopez joined fellow American Idol judges Steven Tyler and Randy Jackson onstage at FOX’s ‘American Idol’ Season 11 Top 8 to 7 Live Elimination Show on Thursday (April 5, 2012) in Hollywood, California.

The 42-year-old entertainer wore a cap-sleeved dark grey anthracite python snakeskin sheath Lanvin Spring 2012 cocktail mini dress with crew neckline and exaggerated sculptural shoulders.  The short frock was accessorized with gold Celine jewels including a chunky necklace and matching wide cuff bracelets, Marina B.  earrings, Brumani rings, a large black leather clutch with gold hardware and black Christian Louboutin ‘Pick and Co’ ankle strap pumps with a spiked toe-cap and a sheer inset.

JLo was later photographed with Extra host Mario Lopez at the Planet Dailies and Mixology 101 grand opening held at the brand new restaurant in Los Angeles, California.  Also in attendance at the big opening bash was Jenny’s beau Casper Smart, American Idol‘s PiaToscano, Arnold Schwarzenegger, British boyband The Wanted, Lance Bass, and Glee‘s Chord Overstreet.