Britney Spears, Sam Asghari getting married Thursday

Wedding bells are ringing for Britney Spears.

The “Sometimes” singer and her fiancé, Sam Asghari, are getting married Thursday at her Thousand Oaks, Calif., home, a source confirms

The pair will tie the knot in an intimate ceremony surrounded by approximately

50 close friends and family members, we’re told.

TMZ reported that Spears’ brother, Bryan, will be in attendance, but her estranged parents, Jamie and Lynne,

and sister, Jamie Lynn, didn’t receive invitations after their fallout over her conservatorship battle.

Sources told the website that it’s not yet known who will walk the pop star,

40, down the aisle, as details are still being worked out.

Ahead of the nuptials, Spears shared video of her and Asghari, 28.