Indeed, I woke up this morning...
That usage is surely far older than the '20s and I doubt that would surprise anyone.
But I don't think that is the usage in 'Stay Woke Ball': Wiktionary lists obsolete usage of 'wake' as 'To sit up late for festive purposes; to hold a night revel'; to me 'stay woke' there sounds like 'stay sat down' and similar, which is dialectal (British, at least) English for essentially the same as 'stay sitting down'.