Serena Celia van der Woodsen

Serena Celia van der Woodsen is a fictional character in

 the young adult novel series Gossip Girl and its television adaptation. 

Serena is featured on the blog of the novel series' mysterious

 "Gossip Girl" narrator. Serena is Blair Waldorf's best friend,

 and is a character  that appears to easily get whatever 

she wants because of her good looks, energy, and charisma.