Celeb Spotter 057: Gigi Hadid turns 23, Jessica Simpson makes rare appearance

Gigi Hadid turns 23!

The model celebrated her birthday in Brooklyn on Monday night surrounded by a ton of family and friends, including sister Bella, mother Yolanda, brother Anwar and model friends Olivia Culpo, Joan Smalls and Hailey Baldwin, who were all photographed going and coming to the bash.

SEE ALSO: TIME 100 Gala 2018: Red carpet arrivals

Also in NYC was Jessica Simpson, who made a rare appearance this week rocking a super sexy street style look.

More of our favorite celebrity spottings this week came from Chrissy Teigen and John Legend, Cardi B, Jennifer Lopez and Alex Rodriguez and "America's Got Talent" judges Simon Cowell and Mel B.

See our favorite celebrity sightings of the week below:

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Celeb Spotter 057: Gigi Hadid turns 23, Jessica Simpson makes rare appearance
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Celeb Spotter 057: Gigi Hadid turns 23, Jessica Simpson makes rare appearance

Former "WKRP in Cincinnati" actress Loni Anderson was spotted leaving West Hollywood hot spot Craig's on Thursday night in a chic all-black ensemble, including a sheer blouse.

(Photo by gotpap/Bauer-Griffin/GC Images)

Kendra Wilkinson debuted a drastic new look -- her first time as a brunette! -- on Thursday while out and about in Los Angeles weeks after her shocking split.

(Photo by SMXRF/Star Max/GC Images)

Jessica Simpson made a rare outing in NYC this week in a cleavage-baring mini slip dress and thigh-high boots.

(Photo by Alessio Botticelli/GC Images)

Gigi Hadid and Bella Hadid were spotted walking into Gigi's 23rd birthday party in Brooklyn on Monday night.

(Photo by Raymond Hall/GC Images)

Katie Holmes rocked BVLGARI diamonds as she stepped out for the BVLGARI World Premiere Screening at the Tribeca Film Festival on Thursday in a two-piece floral look.

(Photo by Gilbert Carrasquillo/GC Images)

Destiny's Child members Kelly Rowland, Beyoncé and Michelle Williams had a girls night at Peter Dundas' first traveling flagship in West Hollywood on Tuesday, where they posed with Peter and Evangelo Bousis and enjoyed Casamigos cocktails fresh off of their Coachella reunion.

"America's Got Talent" judge Mel B rocked a plunging "girl power" gown in Los Angeles on Tuesday.

(Photo by Hollywood To You/Star Max/GC Images)

Cardi B walked into LAX draped in a Bardi Gang blanket on Tuesday.

(Photo by SMXRF/Star Max/GC Images)

Serena Williams and husband Alexis Ohanian were spotted at the premiere of Williams' HBO documentary "Being Serena" on Wednesday night in NYC.

(Photo by Gilbert Carrasquillo/GC Images)

Actress Jennifer Lawrence sipped Woodford Reserve’s $2,500 Mint Juleps with Woodford Reserve’s Assistant Master Distiller, Elizabeth McCall at Churchill Downs this past Saturday night to kick off the opening of Derby Week while supporting her charity The Jennifer Lawrence Arts Fund. The actress looked stunning in the orange color of the evening while wearing a fitted Dolce & Gabbana dress with a pizza stain on it, which she concealed with her clutch all evening.

(Photo: CP Photography) 

Priyanka Chopra was stunning in a spring-y, floral dress for her appearance on "Good Morning America" on Thursday morning.

(Photo by Raymond Hall/GC Images)

John Legend and Chrissy Teigen were spotted leaving their hotel on the City Harvest Gala, where Teigen was honored on Tuesday night. 

(Photo by Raymond Hall/GC Images)

Naomi Campbell was spotted leaving the Azzedine Alaia Bond Street store opening on Thursday night in London.

(Photo by Mark R. Milan/GC Images)

Katie Holmes was lovely in lavender for an event in New York City on Wednesday night.

(Photo by Robert Kamau/GC Images)

Alex Rodriguez, Guadalupe Rodriguez and Jennifer Lopez walked arm-in-arm into The Polo Bar in NYC on Tuesday. 

(Photo by James Devaney/GC Images)

Gigi and Bella Hadid rocked suits to the premiere of pal Serena Williams' HBO documentary, "Being Serena," on Wednesday night in New York City.

(Photo by Gilbert Carrasquillo/GC Images)

Ariel Winter and boyfriend Levi Meaden were spotted holding hands while out and about in Los Angeles on Thursday.

(Photo by BG015/Bauer-Griffin/GC Images)

Hilary Duff helped launch Claritin's 20 Minutes Of Spring Project in partnership with Boys & Girls Clubs of America in NYC this week to inspire people to spend more time outdoors.

(Credit: Michael/startraksphoto.com)

Chris Hemsworth was a total sex symbol walking into the "Jimmy Kimmel Live!" studio on Wednesday.

(Photo by BG017/Bauer-Griffin/GC Images)

"Real Housewives of New York" star Luann de Lesseps attended the 2018 Tribeca Studios and MCM Sneak Preview of Women's Hip Hop at Public Arts on Tuesday.

(Photo by Johnny Nunez/WireImage)

Pregnant Rachel Weisz waved to paparazzi while out and about in Midtown on Wednesday.

(Photo by Raymond Hall/GC Images)

Olivia Culpo hosted the launch of TIMEX's spring 2018 women's collection on Tuesday night at The NoMad Hotel Rooftop in NYC.

(Photo by Monica Schipper/Getty Images for Timex)

Vanessa Williams was all smiles at Gare du Nord Station in Paris on Wednesday.

(Photo by Marc Piasecki/GC Images)

Jennifer Garner was spotted on a coffee run in Los Angeles on Tuesday in all-black workout apparel.

(Photo by BG004/Bauer-Griffin/GC Images)

Janelle Monae performed at Spotify's launch party for her new album "Dirty Computer," where Spotify Fans First invited 150 of her biggest streaming fans to the Mack Sennett Studios in Los Angeles on Thursday to celebrate with the star.

(Photo by Christopher Polk/Getty Images for Spotify)

Robert Downey Jr., rocking MOBS Tread High Style Sneakers in Dusty Rose, waved to paparazzi outside of the "Jimmy Kimmel Live" studio in Los Angeles on Monday.

(Photo by BG017/Bauer-Griffin/GC Images)

Serena Williams had fun with fans at the HBO's "Being Serena" Immersive Experience at Industria on Tuesday night in NYC.

(Photo by Eugene Gologursky/Getty Images for HBO)

John Legend and Chrissy Teigen were spotted leaving their SoHo hotel on Wednesday.

(Photo by Robert Kamau/GC Images)

Simon Cowell took a smoke break in Los Angeles on Tuesday in his uniform of a plunging white button-down, bellbottom jeans and boots.

(Photo by gotpap/Bauer-Griffin/GC Images)

Robert De Niro attended the Tribeca Film Festival Awards Ceremony and After-Party presented by Chloe Wine Collection at BMCC Tribeca PAC on Thursday night.

(Photo by Jim Spellman/WireImage)

Gigi Hadid rocked a sporty ensemble while leaving her NoHo apartment in NYC on Thursday.

(Photo by Raymond Hall/GC Images)

"Avengers: Infinity War" star Scarlett Johansson was spotted at "Jimmy Kimmel Live!" on Tuesday.

(Photo by RB/Bauer-Griffin/GC Images)

"The Avengers: Infinity War" Mark Ruffalo was spotted out and about in Los Angeles rocking a Marvel t-shirt from UNIQLO's new UT Marvel collection.

(Credit: UNIQLO)

Marisa Tomei stepped out for the "Disobedience" after party at "Distilled" in NYC on Tuesday.

(Photo by Roy Rochlin/Getty Images for 2018 Tribeca Film Festival)

Liev Schreiber was seen biking with his kid in SoHo on Tuesday.

(Photo by Raymond Hall/GC Images)

Hailey Baldwin, Joans Smalls were photographed leaving Gigi Hadid's 23rd birthday party in Brooklyn on Monday night.

(Photo by Raymond Hall/GC Images)

Anna Wintour supported friend Serena Williams' new HBO documentary "Being Serena" by attending the premiere on Wednesday night in New York City.

(Photo by Gilbert Carrasquillo/GC Images)

Reese Witherspoon looked totally spring-y while running errands in Los Angeles on Monday.

(Photo by BG004/Bauer-Griffin/GC Images)

E. J. Johnson showed off some sass with a fiery Jeep Wrangler at Rolling Stone Celebrates 'The New Classics.'

"Modern Family" actress Sarah Hyland was seen touching down at LAX on Tuesday.

(Photo by SMXRF/Star Max/GC Images)

Singer Kylie Minogue hammed it up for the paparazzi outside of her hotel in NYC on Tuesday in a pretty floral dress.

(Photo by Tal Rubin/GC Images)

Priyanka Chopra posed outside of the "Live With Kelly and Ryan" in NYC on Thursday.

(Photo by Raymond Hall/GC Images)

Cindy Crawford was effortlessly chic making her way through the hoards of paparazzi at LAX on Monday. 

(Photo by SMXRF/Star Max/GC Images)

Adam Sandler and his wife, Jackie, were seen making their way to the premiere of Netflix's "The Week Of."

Bad Bunny and J Balvin partied together at Buchanan's Es Nuestro Momento celebration at Remezcla Studios in Las Vegas on Wednesday night.

(Photo by Bryan Steffy/Getty Images for Buchanan's Whisky)

Olivia Culpo was photographed on her way out of Gigi Hadid's 23rd birthday party in Brooklyn on Monday night.

(Photo by Raymond Hall/GC Images)

Kandee Johnson and Gigi Gorgeous hung out at the official Beautycon NYC after party at Sun West Studios on Saturday, where guests enjoyed SVEDKA Vodka cocktails.

(Credit: Beautycon)

Anwar Hadid was spotted leaving sister Gigi's apartment in New York on her birthday.

(Photo by Ignat/Bauer-Griffin/GC Images)

Lily Aldridge headed to Gigi Hadid's 23rd birthday party on Monday night in NYC.

(Photo by Gotham/GC Images)

Yara Shahidi with brother Ehsan Shahidi were spotted at the Brooks Brothers Bicentennial celebration at Jazz at Lincoln Center on Wednesday night in NYC.

(Photo by Gilbert Carrasquillo/GC Images)

Mariska Hargitay was spotted snapping selfies with City Year New York AmeriCorp’s members at the Citi Year New York 2018 Gala, where she presented Comcast’s David Cohen with the “Champion of Service” award.

Elizabeth Olsen looked gorgeous walking into the "Jimmy Kimmel Live!" studio in Los Angeles on Thursday.

(Photo by RB/Bauer-Griffin/GC Images)

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