Selena Gomez may have just met her longtime crush Shia LaBeouf, but boyfriend Justin Bieber is still the No. 1 guy in her life.
In fact, the teen twosome are so totally in love.
How do we know? Read on to find out...
READ: Selena Gomez Talks Justin Bieber: "I'm Really Happy!"
Just last night, Bieber and Gomez hit up an A|X Armani Exchange store in NYC for some couples' retail therapy. "They both said 'I love you' to each other, but Justin said it first," a source tells us of the duo.
According to the source, they repeated the L-word many times while holding hands and stealing a few kisses. Selena even picked out some of the brand's Pima T-shirts for her man. (P.S.: Don't forget to check out the premiere of E! Special: Selena Gomez, tonight at 10 p.m. on E!)
In other celebrity sightings, Tobey Maguire celebrated his birthday at L.A.'s Campanile restaurant Monday night with a big group that included celeb pals like Leonardo DiCaprio, Kevin Connolly and Sarah Gilbert. The gang rolled in a little before 9 p.m. and got a private room in the back of the restaurant. At one point, Maguire was serenaded by the group with "For He's a Jolly Good Fellow."
Nicole Scherzinger celebrated her 33rd birthday in Las Vegas by lounging poolside at Marquee Dayclub at the Cosmopolitan and partying at Tao nightclub.
Courteney Cox and David Arquette lunched with daughter Coco at 3 Square Café in L.A.'s Venice neighborhood.
Mark Ruffalo and Liev Schreiber sipped Ty Ku Sake Silver at the Imitation of Christ screening event at the Jane Hotel in NYC.