Who started “Hey Ya!”?

US radio listeners, on Audio, Aug 1, 2003. It reached 7 platforms in 21.4 years.

LineageContestedKey steps, 11 of 16. Lines follow time and platform
US radio listenersFirst postMTV Total Request LiveTVRadio & RecordsPressCommercialPlatform jumpMilestoneBacklashPressPlatform jumpOwner responseAfterlifePatient zero