Carmen Miranda in the final shot of the Lady in the Tutti-Frutti Hat number from The Gang’s All Here (1943, dir. Busby Berkeley)
If you’d like to legally experience the effects of a technicolor acid trip, do check out the sequence here. 

Carmen Miranda in the final shot of the Lady in the Tutti-Frutti Hat number from The Gang’s All Here (1943, dir. Busby Berkeley)

If you’d like to legally experience the effects of a technicolor acid trip, do check out the sequence here