Many people are too concerned with the main PA and put the monitors as secondary in importance. Depending on the music and the budget the monitor system can be quite extensive. Most major concert artists use in ear monitors system-ear monitoring systems now days. A solo artist or a duo can often get by with a single monitor mix. Bands do also get by with a single mix, but it requires experience and co-operation.
It wasn't about her on-stage entourage including a five piece band highlighted by Jason Chapman on piano and Justin Derrico on guitar; nor was it about the back-up why do singers take out their earpieces, the dancers or the emcee.
Sometimes vocalist cannot hear themselves during live performances. Volume is to be blamed here. Not having the correct loudness can cause pitch problems as well. Use special in-ear monitors when you sing live if you suspects that this is the culprit of you having a bad pitch.
The following year, Britney became a superstar with her recording of "Baby One More Time." Although she initially presented and promoted a good girl image for her album, the feedback music that came out of the hit CD could have been her first hint of the troubles to come.
For age 78, one has to admit Eden looks almost as sexy as she did as the original character. What do you think of Barbara Eden in her genie costume at age 78?