Britney Spears is enjoying being ''silly'' after therapy.

The 'Piece of Me' singer - who recently completed a 30 day stint at an unnamed facility after she became ''distraught'' over her father Jamie's ongoing health battle, which began when he ruptured his colon last November - has opened up on social media to let fans know she is doing well.

Alongside a playful video of the star pulling faces at the camera, she wrote on Instagram: ''... after therapy and being too serious it's so nice to be silly!!!!!''

A source previously revealed Britney has ''come such a long way'' during her time in a mental health facility and can't wait to spend time with her sons Sean, 13, and Jayden, 12, when their summer break starts.

The insider said: ''When she was in the facility, Britney spoke nonstop about going home and seeing her boys, and that is the very first thing she did.

''She wants to spend every moment she can with them and can't wait for their summer break to begin. While everyone warned her to take it slow and give herself time in the facility, Britney missed her routine and just being in her own bed.

''She has come such a long way. She's had years of therapy and care, and this time, she knew the signs when she needed help. With the support of [boyfriend] Sam Asghari and her father she made the decision to get help and she's very proud of that.''

Meanwhile, Britney recently insisted she will perform again after her manager Larry Rudolph claimed it may ''never'' happen.

When asked by reporters if she would go on stage, she said: ''Of course.''

Britney's manager Larry previously clarified his comments after it was reported he said the star may ''never'' perform again.

In a statement, Larry said: ''Other media sources seem to be picking up my quotes to TMZ as implying that Britney will never work again. That's not what I said. I simply said that the Vegas residency is now officially off and that she hasn't called me in months to talk about doing anything so I'm not sure if or when she will ever want to work again.

''It's that simple. She calls me if and when she wants to work. Other than that I'm not involved in anything else. Not the conservatorship, not her medical treatment, not her kids. Nothing else.''