Who's this VenetianPrincess? Apparently, a real chick that rose to fame on youtube. Dubbed “Female Weird Al Yankovic”, and is the most subscribed female on YouTube. She made several parodies that are highly popular. Her real name is Jodie-Amy Rivera (born 1984). Her website is vprincess.com.
See the original version here: Womanizer by Britney Spears.