Lunchtime Links 03/21/14

Catch the latest trending topics that have us tweeting, posting, and sharing right now.

1. Flashback Friday! Go back in time and see these celebrities’ first tweets, ever. [PopSugar]

2. Time to book that flight! Madonna’s three-product skincare line is only available in Japan. [Fashionista]

3. Billy Joel and Jimmy Fallon form a two-man doo-wop group using an iPad app. [YouTube]

4. The L’Oréal Foundation honored the achievements of five female scientists at the company’s Women in Science awards ceremony. [WWD]

5. Karlie Kloss talks fashion and career in her new essay, “How Oscar de la Renta Made Me a Supermodel.” [The Daily Beast]

6. Olivia Munn is the latest face of Proactiv! [E! Online]