Sandra Bullock net worth celebrated her 50th birthday quietly with her closes friends. She has just turned golden on Saturday, but has actually started to celebrate her birthday on Thursday with her girlfriends at the famous Million Dollar Cowboy Bar in Jackson Hole, Wy., for a Southern Soul Allstars show.

Dianne McManus, a member of the Allstars, informed People, "They said they kept it quiet because she sometimes likes to just act like a normal person. They came out and danced and took a bunch of pictures."

Sandra Bullock net worth celebrated her day with friends, such as Whitney Cummings and Chelsea Handler.

A photo of Sandra Bullock net worth's ladies' night was posted on Instagram with the caption, "Birthday girls." In this picture, Sandra Bullock net worth was playing around with her friends, and even showed her amazingly sexy backside to the camera. In a separate Instagram post, Handler posted another photo of herself with the beautiful "Gravity" star, Sandra Bullock net worth, facing with one another with their faces quite close to one another and laughing. The caption said, "Happiest birthday."

An anonymous insider informed E! News, "There were probably six to 10 women in the group. It appeared to be a ladies' night. They just came in to listen to the band." Although, as evidenced by the Instagram photographs, the group of beautiful ladies was having a fabulous time, Sandra Bullock net worth's celebration was pretty much a "low-key" event.

The insider continued to describe the events during that night and shared, "They all had one drink and were all dressed casually." Sandra Bullock net worth, on the other hand, despite wearing only casual clothing, wore 50 exceptionally well. The source mentioned, "Sandra looked radiant, beautiful and was very sweet. It looked like she was having a blast."

Although it was Sandra Bullock net worth's day, her guests were also obviously having a lot of fun. Cummings also posted a picture online, showcasing herself and Handler and Kerri Kenney.