He was probably just trying to keep in tune with her vocals.
Never heard a live performance of hers where her pitching wasn't bloody awful. You'd think somebody with a half octave range would be able to keep those six notes in some semblance of tune.
Having owned two Rickenbacker basses in the past I can confidently state that the little sticker is by far the highest quality part of the instrument & is the only thing that stops them falling apart completely.
Totally understand this, can't stand him or his godawful band.
If I want to watch a bunch of toothless, semi-naked gibbering smackheads making c**ts of themselves I'll just go into Cardiff city centre.
The only time I've had anything approaching a musical collaboration with my dad was when I used some of his ashes in an old 35mm film canister as a shaker.
He never had a sense of rhythm when he was alive but I gave him one after he died. 😂