How do you make a headline? You take a page out of Rita Ora's book by wearing an outfit that exposes some side boob!

The British songstress, 24, did just that on Tuesday, June 23 in NYC. The platinum blonde wore a very risqué LBD as she was seen running some errands around Manhattan.

rita ora

From the front, it looked innocent enough … until she turned to the side to expose a deep arm slit! And, naturally, she wasn't wearing a bra. #FreeTheNipple, girl!

Scroll through to see even more stars who know a thing or two about extreme side boob!