Martin Nolan, Co-Founder and Executive Director of Julien's Auctions tells PEOPLE about the rich history behind pieces ...

The outfit, designed by legendary fashion maestro Bob Mackie, was worn by Cher in the video for her 1989 hit. The sexy look has since become one of the most recognisable in pop culture history.

When Cher stepped on stage during February's Saturday Night Live 50th reunion special in a glittering black Bob Mackie bodysuit and sang “If ... for her performance at the 2010 MTV Music Video Awards ...

Lately, fans have gone the extra mile to curate a perfect concert outfit ... pieces designed by Bob Mackie pulled in a whopping six-figure sum ($243,425 total). Cher’s beloved embellished ...

Some iconic outfits ... designed by Bob Mackie, was sold for $162,500, which was twice what was expected. “The sale reaffirmed both Mackie’s legendary craftsmanship and Cher’s timeless ...

Last but not least, there were the Cher pieces. Most notably, her "If I Could Turn Back Time" outfit, most recently ... going for $162,000. "Bob Mackie made it in 2002 for her Farewell Tour ...