Rihanna's Dream Hair Color, Katy Perry's "Part of Me" Trailer, and More!

1. Rihanna credits Beyoncé's baby girl, Blue Ivy, for making her want navy blue hair. [People StyleWatch]

2. The trailer for Katy Perry's "Part of Me" music video is here! The full feature drops March 21st. [Facebook]

3. The Italian perfumer behind Sarah Jessica Parker's scent created a cologne for the Pope. [The Telegraph]

4. What does it take to make a Chanel tweed jacket? Watch this video and find out! [Fashionologie]

5. If you're a working mom with a penchant for pretty clothes, bookmark Elizabeth Street. [Elizabeth Street]

6. See Johnny Depp as a vampire in the trailer for his new comedy, Dark Shadows. [iTunes]