Jay Sean's Must-Have Products: From the Nintendo Switch to His Favorite T-Shirt

"You can't go wrong with a Zara Basic Heavyweight T-Shirt ($30) in black," Sean says. Although he has plenty of them in his closet, it's a wardrobe staple he can depend on — whether it's a fun, vibrant jacket or a classic pair of jeans. "It's a running joke that no matter what country I land in, even though I have 10 black tees with me, I'll always go to Zara and go and buy another one. I know it's just going to look nice and crisp under whatever outfit I have."