Well, having watched both videos, in one everything appears to be in sync and in one it doesn’t. In the out of synch version there appear to be several bits of dialogue missing as well. As such, and bearing on in mind it was the thick end of 30 years ago my money is on Little Richard and he’s unlikely to repeat the performance come what may. https://youtu.be/AK_jm3Hz1Wk
andy trust me and Mamya, in the video she has put on, that is definitely live. The video you put on isn't even out of sync, it's a live performance with a different version of the song. No idea why this would have been done, but I would say it would be impossible for Little Richard to mime his songs.
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sync
/sɪŋk/
INFORMAL
verb
past tense: synced; past participle: synced
synchronize.
"the flash needs to be synced to your camera"
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