Rihanna [1] is refreshingly outspoken on many matters: relationships [2], sex, social media detractors [3], and her love of weed. The self-professed bad gal frequently shares pictures of herself sparking up a joint — sometimes two [4] — and she even dressed up as the "bride of Mary Jane" on Halloween [5] in 2012. With her 29th birthday taking place on Feb. 20, we have a pretty good idea of how she'll be celebrating. Look ahead for some of her proudest pothead moments.