Is Gwen Stefani coming to town?

Sounds B-A-N-A-N-A-S for sure, but according to the Shanghai Cultural Information website, her Gwenness is headed for a concert at Shanghai Grand Stage on May 5. Calls to the booking number have only led to an automated voice and her personal website isn't helping to solve the mystery either - the latest thing it shows is concert dates for last year's No Doubt tour. Will Shanghai be seeing some o' dat LAMB, or is this some sophisticated scam?