<p><div class="KonaFilter image-container display-table float_right"><div><div class="image on-image"><img src="https://static-ssl.businessinsider.com/image/5748827c9105842a008c5915-879/kevin o'leary.jpg" alt="kevin o'leary" data-mce-source="&amp;quotShark Tank&quot;/ABC" /><p class="source"><span>"Shark Tank"/ABC</span></p><p class="caption">Kevin O'Leary got quite shaken during the pitch for Pavlok in Season 7.</p></div><p></p></div></div>Hundreds of entrepreneurs have pitched their companies on "Shark Tank" since the show debuted in 2009, but some of the most memorable pitches are the worst ones.</p><p>They stand out for different reasons. In some, the products are ridiculous. In others, the entrepreneurs are completely unprepared or so arrogant they appear clueless.</p><p>In anticipation of the Season 8 premiere on Friday, we've gathered the Sharks' least favorite presentations as well as our own picks for the worst pitches in the show's history.</p>

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The 18 worst 'Shark Tank' pitches ever

"Shark Tank"/ABCKevin O'Leary got quite shaken during the pitch for Pavlok in Season 7.Hundreds of entrepreneurs have pitched their companies on "Shark Tank" since the show debuted in 2009, but some of the most memorable pitches are the worst ones.They stand out for different reasons. In some, the products are ridiculous. In others, the entrepreneurs are completely unprepared or so arrogant they appear clueless.In anticipation of the Season 8 premiere on Friday, we've gathered the Sharks' least favorite presentations as well as our own picks for the worst pitches in the show's history.

Shark TankABCKevin OLeary got quite shaken during the pitch for Pavlok in Season 7. Hundreds of entrepreneurs have pitched their companies on Shark Tank since the show debuted in 2009, but some of the most memorable pitches are the worst ones.

The 18 worst 'Shark Tank' pitches ever

Richard Feloni

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