The video for Britney Spears' (search) new single, "Someday (I Will Understand)" (search) will debut on the final episode of her and husband Kevin Federline's (search) UPN reality show.

The finale of the six-episode series "Britney and Kevin: Chaotic" (search) airs Tuesday, June 14, at 8 p.m. EDT/PDT.

The series features pre-pregnancy home videos of the couple's dating, engagement and wedding. The 23-year-old Spears is due to have her first child in the fall.

Spears released a compilation, "Greatest Hits: My Prerogative," in November.