This Week's Best Beauty Twipics from Doutzen Kroes, Taylor Swift and NARS!

This week on Twitter, celebs and makeup artists gave us a glimpse of their behind-the-scenes beauty prep — we saw a sneak peek of Doutzen Kroes before the CFDA Fashion Awards (we loved her slick up 'do!) and Rachael Finch getting primped for a photo shoot. The NARS team were busy backstage at the ACNE Cruise presentation, DVF launched her new fragrance, and who knows — Taylor Swift might start a new trend with her fibre optic hair! Check 'em out and follow us on Twitter for the latest beauty news!