The Forbes list of 100 most powerful women is out, and this year it was all about global influence and social media. For the fifth time, German Chancellor Angela Merkel has taken the No. 1 spot as the most powerful woman, with White House women Hillary Clinton (2) and Michelle Obama (8) coming in close behind. There were a handful of execs from Facebook, Google, Yahoo!, and Twitter on the list, and the youngest powerful woman is 25-year-old Lady Gaga, who edged out Oprah Winfrey (14) just slightly by ranking 11th. There are big names in the pool, but here are some surprising tidbits on the most well-known women in this year's Forbes list.