Opinions expressed by Forbes Contributors are their own. Hugh McIntyre covers music, with a focus on the global charts. No Doubt, Tony Kanal, Gwen Stefani, Adrian Young and Tom Dumont, backstage ...

Gwen Stefani has some studying to do ahead of the hotly anticipated No Doubt reunion at the Coachella music festival in April. The singer admitted this week that she needs a solid refresher on ...