Pregnant singer Britney Spears' just-wrapped reality TV show, "Britney & Kevin: Chaotic," lost its appeal for some viewers and outraged others.

Spears gave viewers a sneak peek at the video for her new tune "Someday (I will understand)" and her surprise wedding to Kevin Federline in Tuesday's finale.

However, just 2.1 million U.S. viewers tuned in Tuesday compared to 3.7 million for the first episode May 17, Access Hollywood reported.

The London Daily Mail said the TV show was intended to provide a springboard for Federline, an unemployed dancer, to become a star in his own right.

However, the newspaper said parents were angered by scenes that showed Federline naked in the shower and members of Spears' entourage discussing their favorite sexual positions.

Spears, opting for comfort rather than fashion, wore baggy pants and a stretch top while shopping in Hollywood in recent days, the Daily Mail reported. The 23-year-old is due to have her first child in September.