I'm sure this has already been done but on another thread we mentioned how the Supremes were mentioned on Roseanne. I also have watched the entire series of Cheers during the pandemic and they came up in a couple episodes:
*Sam and Diane have dinner with one of Diane's old school friends. Diane being the nerd she is mentions they're like three classic philosphers together and Sam responds "Yeah or like the Supremes".
*Carla is depressed after finding out she's gonna be a grandmother so Rebecca, Lilith and cant remember who the third one was go over her house to cheer her up and Carla says to her husband "Would you please get the Supremes out of here!".

I'm familiar with mentions in TV shows but how about movies?