Robbie Williams and Gary Barlow

From teen idol to international headliner, English singer/songwriter and consummate showman Robbie Williams graduated from '90s boy band Take That to become a successful solo artist, embracing a mischievous bad-boy image while becoming one of the U.K.'s most prominent entertainers and one of the best-selling artists of all time. Following his stint with Take That -- during which time Williams and his bandmates issued three multi-platinum hit albums -- his star grew even brighter, with a string of chart-topping records and sales that surpassed Take That by a wide margin. Settin...