The singer, 26, will reprise her guest role as a dorky receptionist named Abby on the May 12th episode of the CBS sitcom.
"She is excited about going back," a Spears source told Usmagazine. "She enjoyed the experience so much and can’t wait to do it again."
A source close to her agent, Jason Trawick, told Us: "They were very respectful and he knows she is in good hands. He admires the director and he is confident Britney will shine again."
"We're all so thrilled to have Britney joining us once again," executive producer Craig Thomas told Entertainment Tonight.
Spears helped the show earn its highest ratings ever when she appeared on March 24 episode.
After her first stint on the show, she said the work was "so terrific."
I'm very excited to watch her again...she was awesome in her first appearance!


Yes, it's only a matter of time...
No, she's better than that. Plus she has Billy Ray to protect her.