Best Dressed of the Week: Jennifer Lopez Loves a Good LBD

Plus, must-see looks from Mel. B, LeToya Luckett and more.

Jennifer Lopez - J.Lo's latest American Idol 'fit is snatched. She schools us on how a LBD is done in a David Koma off-the-shoulder embellished dress and silver Casadei pumps. By Jazmine A. Ortiz(Photo: Michael Becker/FOX via Getty Images)

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Jennifer Lopez - J.Lo's latest American Idol 'fit is snatched. She schools us on how a LBD is done in a David Koma off-the-shoulder embellished dress and silver Casadei pumps. By Jazmine A. Ortiz(Photo: Michael Becker/FOX via Getty Images)

Mel B. - The America’s Got Talent judge takes the Season 10 red carpet in Hollywood in a seamed sheath with stripes. Classic!(Photo: Jason Kempin/Getty Images)

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Mel B. - The America’s Got Talent judge takes the Season 10 red carpet in Hollywood in a seamed sheath with stripes. Classic!(Photo: Jason Kempin/Getty Images)

Photo By Photo: Jason Kempin/Getty Images

Freida Pinto - Everything about this look is darling! The actress attends the Desert Dancer screening in NYC wearing an Elie Saab Haute Couture purple floral appliqué dress.(Photo: Andrew H. Walker/Getty Images)

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Freida Pinto - Everything about this look is darling! The actress attends the Desert Dancer screening in NYC wearing an Elie Saab Haute Couture purple floral appliqué dress.(Photo: Andrew H. Walker/Getty Images)

Photo By Photo: Andrew H. Walker/Getty Images

Kendall Jenner - This is certainly not typical Sunday service attire, but let's b*real — this is one hot ensemble! The model attends Easter mass in a Bec & Bridge halter top, O’2nd wide-leg wrap pants, and Tom Ford lace-up pumps.(Photo: WENN.com)

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Kendall Jenner - This is certainly not typical Sunday service attire, but let's b*real — this is one hot ensemble! The model attends Easter mass in a Bec & Bridge halter top, O’2nd wide-leg wrap pants, and Tom Ford lace-up pumps.(Photo: WENN.com)

LeToya Luckett - We live for her Single Ladies style and even off-screen her looks charm us. Here she sports an Anthony L. Williams creation before taping Centric’s Sip & Share event. The eyelets add edge to the ladylike silhouette.(Photo: LeToya Luckett via Instagram)

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LeToya Luckett - We live for her Single Ladies style and even off-screen her looks charm us. Here she sports an Anthony L. Williams creation before taping Centric’s Sip & Share event. The eyelets add edge to the ladylike silhouette.(Photo: LeToya Luckett via Instagram)

Photo By Photo: LeToya Luckett via Instagram

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Amandla Stenberg - The young Hollywood actress hits the 2015 NBCUniversal Summer Press Day in an age-appropriate getup consisting of high-waisted black shorts, a printed tie-neck blouse and black leather booties.(Photo: Jason Kempin/Getty Images)

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Amandla Stenberg - The young Hollywood actress hits the 2015 NBCUniversal Summer Press Day in an age-appropriate getup consisting of high-waisted black shorts, a printed tie-neck blouse and black leather booties.(Photo: Jason Kempin/Getty Images)

Zoe Saldana - Zo serves subtle-sexy at Samsung’s Galaxy S6 Edge launch event. The pop of color on the pumps balances the entire look.(Photo: F. Sadou/AdMedia/SIPA/WENN)

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Zoe Saldana - Zo serves subtle-sexy at Samsung’s Galaxy S6 Edge launch event. The pop of color on the pumps balances the entire look.(Photo: F. Sadou/AdMedia/SIPA/WENN)

Photo By Photo: F. Sadou/AdMedia/SIPA/WENN

Amber Rose - Hitting up an all-white party this season? Take notes from this baddie. This A.L.C. white cut-out jumpsuit really sets off her new electric blue ‘do.(Photo: Photographer Group/Splash News)

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Amber Rose - Hitting up an all-white party this season? Take notes from this baddie. This A.L.C. white cut-out jumpsuit really sets off her new electric blue ‘do.(Photo: Photographer Group/Splash News)

Photo By Photo: Photographer Group/Splash News

Chanel Iman - The model attends the Dior and I premiere in NYC in a pretty printed frock and sharp black pumps.(Photo: Dimitrios Kambouris/Getty Images for Dior)

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Chanel Iman - The model attends the Dior and I premiere in NYC in a pretty printed frock and sharp black pumps.(Photo: Dimitrios Kambouris/Getty Images for Dior)

Photo By Photo: Dimitrios Kambouris/Getty Images for Dior

Kim Kardashian - Mrs. West is spotted with the fam at LAX in Los Angeles wearing her usual neutral palette, but it still deserves a moment.(Photo: Splash News)

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Kim Kardashian - Mrs. West is spotted with the fam at LAX in Los Angeles wearing her usual neutral palette, but it still deserves a moment.(Photo: Splash News)