07:00Sarah-Jane CrawfordSaturday - Sarah Jane Investigates the 4th of JulyBBC Radio 1Xtra Duration: 3 hours Sat 3rd Jul 2010, 07:00 on 1xtraSarah Jane investigates the 4th of July, what it is and why it's a big day for the American people, with contributions from Kelly Rowland and Zena Gibbs.GenresMusicPop & ChartMusicHip Hop, RnB & DancehallMusicPop & ChartExperimental & NewBrandSarah-Jane Crawford Source: BBC Online