R n B singer Rihanna is #1 on the list of Top 10 Social Networking Superstars released by Forbes magazine.
Twitter followers: 23.8 million
Facebook fans: 59.6 million
Lady Gaga comes in second place overall, but has the highest number of twitter followers.
Twitter followers: 28 million
Facebook fans: 53 million
Although most of Eminem's tweets are promotional, he ranks third in the superstar list.
Twitter followers: 11.9 million
Facebook fans: 60.3 million
Justin Bieber was discovered through Youtube, so one can imagine how active he'll be on social networks.
Twitter followers: 26 million
Facebook fans: 45.8 million
Popstar Katy Perry makes complete use of social networking sites to interact with her fans, post pictures and uploads videos.
Twitter followers: 24.5 million
Facebook fans: 45.7 million
Wanna see Shakira's vacation photos? Simple, just become her facebook fan.
Twitter followers: 17.6 million
Facebook fans: 52.5 million
Doesn't matter if he writes or updates his status, if it's Cristiano's profile, the world is going to follow.
Who doesn't love a young, gorgeous singer writing songs about love and life? Taylor Swift puts pictures ranging from her cat to her coffee cup.
Twitter followers: 17 million
Facebook fans: 33.6 million
Hip-hop star Lil Wayne usually thanks his fans and posts about the Olympics.
Twitter followers: 7.9 million
Facebook fans: 40 million
How can Selena stay out of the list if boyfriend Justin Bieber is on it?
Twitter followers: 12.3 million
Facebook fans: 33 million