Star Tracks: Wednesday, July 16, 2014

Who's having a ball? Idina Menzel croons the National Anthem before the start of the MLB All-Star game at Target Field in Minneapolis, Minn., on Tuesday. "Nothing like a sugar rush after an adrenaline rush," Tweeted the singer, who munched on a cupcake after her performance.

Olivia Wilde shows off the limited-edition Balloon Dog handbag designed by Jeff Koons for HampM at a Tuesday party celebrating the retailer's collaboration with the artist and the opening of its latest store on N.Y.C.'s Fifth Avenue.

He's all grown up! E! host Giuliana Rancic and her dapper-looking son Duke (who turns 2 on August 29) are a stylish mother-son duo at LG's Junior Chef Academy event in Culver City, Calif., on Tuesday.

Row, row, row your boat! Cameron Diaz and host Jimmy Fallon race indoor kayaks on The Tonight Show in New York City on Tuesday, where the Sex Tape star was crowned champion.

Days before Prince George turns 1, Prince William kicks off a race with local children during a visit to the Coventry War Memorial Park in Coventry, England, on Wednesday.

Michelle Rodriguez (and Zac Efron's Italian gal pal) can't hide her smile while out at L.A.'s Chateau Marmont on Tuesday.

Rising Star judges Brad Paisley, Kesha and Ludacris buddy up at the Hollywood premiere of Disney's Planes: Fire amp Rescue on Tuesday. "Thanks Ludacris & Kesha for going to the Disney Planes premier with me after a long day of mentoring," Tweeted Paisley, who voices a character in the animated flick.

With the essentials in tow – cell, car keys – a newly single Nikki Reed makes her way around West Hollywood on Tuesday.

Best pals and former Scrubs stars Donald Faison and Zach Braff (who is the godfather to Faison's son Rocco) enjoy a bros night backstage at the Broadway musical Bullets Over Broadway at The St. James Theater on Tuesday.

They've got it covered! Jennifer Aniston and fiancé Justin Theroux cozy up to Details editor Dan Peres (left) at a Tuesday party at West Hollywood's Sunset Tower Hotel celebrating the mag's August issue, which features the actor on the cover.

Ashley Tisdale, who's executive-producing the new ABC Family comedy, Young amp Hungry, shows some love for Emily Osment, the series' star, at the Disney/ABC Television Critics Association summer press tour on Tuesday in Beverly Hills.

Looks like she's trying to get pumped! A contemplative Miley Cyrus stops to refuel her Porsche Tuesday in West Hollywood.

"Can you believe my buddy's awesome beard?" That's our take on Bryan Greenberg's bemused expression while sharing a red carpet moment Tuesday with Geoff Stults at ESPN's Body at the ESPY Awards' pre-party at Lure in Hollywood.

Lovebirds Eddie Cibrian and LeAnn Rimes keep in touch at a screening party Tuesday for their new VH1 reality show, LeAnn amp Eddie, in New York City.

Jessica Biel looks lovely (not to mention comfy!) in a lavender dress while heading to a studio in Los Angeles on Tuesday.

We hardly recognized you, Ryan! Reynolds lets his professional side show on set of Woman in Gold in Los Angeles on Tuesday.

Bradley Cooper and girlfriend Suki Waterhouse sport matching sweatshirts after breakfast Tuesday morning in Venice, California.

There's that presidential smile we love! Scandal star and onscreen commander-in-chief Tony Goldwyn lets loose on "Sway in the Morning" at SiriusXM Studios in New York City on Tuesday.

Elle Fanning flashes a smile after an early-morning ballet class on Tuesday in Los Angeles.

Karen Gillan, star of the upcoming show Selfie, puts her best face forward at the 2014 Summer Television Critics Association press event on Tuesday in Los Angeles.

Parents-to-be Pete Wentz and Meagan Camper enjoy a night out at BOA Steakhouse in West Hollywood on Monday.