Bruno Mars, Jessica Caban at Lupo; JT at Yellowtail

Star Watch tracks where celebs are dining in Vegas. See someone notable about town? Email vegas@eater.com.

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• The Wanted dined at Stack on Tuesday night. Photo: Denise Truscello/WireImage
• Michael Phelps was at Heraea on Saturday and Sunday. Photo: Jill Pham
• Singer Leah Labelle dined at Lavo on Sunday night. Photo: Al Powers/Powers Imagery
• Kathy and Richard Wakile and Joe and Melissa Gorga at Meatball Spot. Photo: Bryan Steffy/WireImage
• Jayson Blair dined at Tao Asian Bistro. Photo: Brenton Ho/Powers Imagery
• Jason Kennedy toasts with Whole World water at Tao Asian Bistro. Photo: Brenton Ho/Powers Imagery
• Frank Thomas launched his Big Hurt Beer at Meatball Spot. Photo: Jimmy Atoa

Singer Bruno Mars and his girlfriend Jessica Caban were spotted at Trattoria del Lupo by Wolfgang Puck in Mandalay Bay on Sunday night. The couple ordered calamari fritti to start. For entrees Mars ate penne carbonara and his girlfriend had chicken parmesan. [EaterWire]

Michael Phelps took in the NCAA college basketball action at Heraea at the Palms with a group of friends on Saturday and Sunday. The most-decorated Olympian of all time ordered piquillo pepper poppers, tuna tartare tacos and a steak salad on Saturday and crab and spinach dip, house salad, a custom smoothie and a Fat Tire on Sunday. Singer Wyclef Jean was spotted at Heraea on Tuesday. The rapper, who was joined by friends and business associates, dined on the restaurant's crab spinach dip along with a New York strip steak and a Mai Tai. [EaterWire]

Justin Timberlake and his friends dined at Yellowtail at the Bellagio on Friday night for a bachelor party. The group ordered sushi and sashimi and Timberlake sipped on sake. [EaterWire]

Timberlake's wife Jessica Biel had a girls night out at Fix at the Bellagio on Friday night. In town for a friend's bachelorette party, Biel and her group ordered tuna tartare, wings and some other shared plates. On Saturday night, she dined at Yellowtail. [EaterWire]

Chris Evans, the star of the upcoming Captain America: The Winter Soldier, dined at Tao Asian Bistro at the Venetian on Saturday night. He ordered crispy rice and Yellowtail jalapeño. Melissa and Joe Gorga and Kathy and Rich Wakile celebrated Melissa's 34th birthday with Asian dishes and a special birthday dessert at Tao Asian Bistro. At another table, Tao regular David Spade ordered his favorite dish of Kung Pao chicken. E! News entertainment reporter Jason Kennedy returned to Tao for a second night in a row for dinner. He was there Friday night to kick off Tao Group's commitment to Whole World Water in celebration of World Water Day. Kennedy poured from Tao's first Whole World water bottle as he dined at Tao Asian Bistro, where he ordered signature favorites from the menu with a group of friends including Ryan Basford from Chelsea Lately. Gossip Girl's Chace Crawford also dined at Tao with a friend, sipping on sake and ordering sea bass, lobster wontons, yellowtail jalapeño and more. Jayson Blair from The New Normal was spotted at the Asian bistro on Friday as well. The actor and friends ordered Buddha chicken and satay bass while also trying out the new Whole World water. [EaterWire]

Up and coming R&B artist Leah Labelle who made a name for herself on season three of American Idol dined at Lavo Italian Restaurant at the Palazzo on Sunday night. She drank a Pomegranate Lemonada while ordering seafood alfredo, mushroom ravioli and more. Gossip Girl star Chace Crawford was spotted dining at Lavo on Saturday night. Jayson Blair from The New Normal was also spotted there that same night. Chris Rock and David Spade dined at Lavo on Friday night. The comedians and friends had a variety of ravioli dishes along with salads and tuna tartare. [EaterWire]

Philadelphia Eagles guard Evan Mathis dined at Andrea's at Encore Las Vegas on Friday night. He ordered crispy soft shell crab, cucumber fresh roll, yellowtail and albacore sushi, Philadelphia roll, shrimp pad Thai, a Kobe rib cap and a flight of ice cream. [EaterWire]

Pop princess Britney Spears dined at Meatball Spot at Town Square on Saturday night. Joined by new boyfriend, David Lucado, Spears arrived sporting an orange crop top and sky-high leopard print Christian Louboutin stilettos. The couple ordered classic meatball sliders with mozzarella cheese along with homemade mac and cheese. Spears sipped on Sprite throughout her meal. The Real Housewives of New Jersey star Melissa Gorga dined at Meatball Spot on Friday afternoon with her husband, Joe Gorga, and castmates Kathy and Rich Wakile. The group ordered strawberry peach sangria and shared the tomato and cucumber salad and garbage salad. As a main course, the couples shared a half-tray of sausage and ricotta pizza, and passed around bowls of classic meatballs with classic sauce, chicken meatballs with parmesan cream sauce and beef meatballs topped with spicy meat sauce and melted provolone cheese. Baseball superstar Frank "The Big Hurt" Thomas introduced his new line of Big Hurt MVP Beer at Meatball Spot on Thursday night. While there, the former Chicago White Sox MVP dined on classic meatballs with spicy meat sauce paired with a side of spaghetti and classic sauce. [EaterWire]

NASCAR driver Danica Patrick kicked off her birthday weekend at Restaurant Guy Savoy at Caesars Palace on Wednesday night. Patrick ordered artichoke and black truffle soup and black truffle risotto. She paired 2000 Chateau Figeac Bordeaux with her meal. [EaterWire]

Country singer Shania Twain dined at Spago at the Forum Shops at Caesars on Wednesday after her resident show at Caesars Palace. The confirmed vegetarian ordered mushroom soup, mushroom salad and a mushroom flambée, along with scampi pasta a la puttenesca with extra vegetables and a margarita flambée for dessert. [EaterWire]

Top 40 hit lead singer of the Four Seasons Frankie Valli dined at Gordon Ramsay Steak at Paris Las Vegas on Wednesday with a small group of friends. Valli was celebrating star on the Las Vegas Walk of Stars in honor of the fifth anniversary of the Jersey Boys. He ordered Loup de Mer, a lobster tail and a side dish of sautéed spinach with parmesan cream. [EaterWire]

English boy band sensation The Wanted dined at Stack Restaurant & Bar at the Mirage on Tuesday night. [EaterWire]

Actor Kelsey Grammer was spotted dining at Pink Taco in the Hard Rock Hotel with his wife Kayte Walsh and their daughter at on Tuesday. The family ordered Mexican chopped turkey salads and sipped on diet Cokes. [EaterWire]
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