Live on "The Early Show" plaza, Barbadian pop star and Grammy-award winner Rihiana performs "Umbrella," the chart-topping single of 2007.

Live from "The Early Show" plaza, CBS News' Daniel Sieberg and CNET's Natali Del Conte take a close look at Apple's iPhone and preview some of the features that have consumer in a buying frenzy.

Style guru Colin Cowie shows Harry Smith some affordable liquors and bar essentials for entertaining guests at home.

Dr. Emily Senay explains to Harry Smith why it's imperative for parents to get their children properly vaccinated for measles, mumps and other diseases before the school year starts.

Bianca Solarzano speaks with "The Early Show" medical correspondent Dr. Mallika Marshall about ways to keep off the pounds through adequate sleeping, eating fiber, drinking water and avoiding stress.