This always fascinates, because unlike jazz artists, who esentially have long, graceful careers that only get better with age, rock artsts tend to have short brilliant careers that abruptly sputter out and head south--either slowly or very, very quickly.
Which got me to thinking...when did certain groups or artists "jump the shark"? Here are my initial thoughts on a few bigger stars...
Fleetwood Mac: For me, right after Tusk . For most everyone else, after Rumours .
Blondie: After Eat to the Beat . Autoamerican had two good songs on it, and it was downhill from here.
Elton John : he's had many highs and lows, and is a remarkably resiliant artist, but the bubble did burst after he came out of the closet and broke up with Bernie Taupin, so: Blue Moves .
Belle and Sebastian: Take a left at Fold Your Hands Child, You Walk Like a Peasant
Rolling Stones: After Some Girls
Billy Idol: The day he released "Eyes Without a Face"
Duran Duran: Right after they broke up and formed two groups.
Cher: Was there ever a time before the shark?
Eminem: You're watching it, right now.
Pink Floyd: After The Wall
Madonna: Sorry guys. Right after Erotica
Britney Spears: After Oops! I Did it Again , Corbie.
Michael Jackson: He hasn't done of anything of significance since Thriller , except...well...
Prince: Right after the first Batman soundtrack...
Beatles: No shark!
Beach Boys: Pet Sounds , of course
David Bowie: After Let's Dance