PHOTOS: JOHNNY NUNEZ / WIRE IMAGE

Singer Rihanna threw a surprise birthday party for her assistant/friend Melissa Forde and invited a lot of celebs, like Chris Brown, Teyana Taylor, Dawn (from Danity Kane), Q (from Day 26), and more! Looked like a fun little get together. Check out more photos from the shindig after the cut.

Rihanna showing off her modified tat. Looks dope!