Diamonds are Ariana's best friend.
Ariana Grande put on a positively brilliant performance at a Tiffany & Co. party in Beverly Hills last night. She sang Marilyn Monroe’s "Diamonds Are a Girl's Best Friend," because, as Ariana said herself, “What else do you sing when you're singin’ at Tiffany & Co."
Please excuse the slightly fuzzy video...
Stars like Reese Witherspoon, Jennifer Garner, Kate Hudson and Halle Berry were also in attendance to celebrate the brand’s newly renovated store, and the whole night basically seemed like our dream girl’s night out.