Chris Brown is planning a huge birthday bash in Las Vegas on Saturday night.

A source close to the R&B star told
HollywoodLife.com: "He's about to do his
birthday in style, getting turned up and
hitting up some clubs.
"It's a business thing for him, the clubbing.
He getting paid.
"He'll be in Vegas getting crazy and having
fun with the homies and just doing him.
Chris likes to be the center of everything, so
expect him to grab the mic and freestylin."
The singer, who is planning a champagne-
filled bash, is also trying to convince his on/
off girlfriend Rihanna, 25 - who is
currently on her 'Diamonds World Tour' -
to join him for the night after she was
forced to postpone her concert in Brooklyn,
New York on Sunday because the Brooklyn
Nets need the venue to compete in the
playoffs.
The insider said: "That's his number one
and he wishes she could be with him on his
birthday just like he was with her.
"But that's just how it goes sometime. They
can't be together every second."