Cupcake bakers vie to have their creations displayed at a Hollywood event.

Cupcake bakers vie to have their creations displayed at a Hollywood event.

Winning cupcakes will be eaten at the Hard Rock Cafe's Pinktober concert event, with Melissa Etheridge, aimed at raising breast cancer awareness.

Winning cupcakes will be eaten at the Hard Rock Cafe's Pinktober concert event, with Melissa Etheridge, aimed at raising breast cancer awareness.

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Four creative bakers go head-to-head to have their cupcakes featured at a nonprofit gala benefiting environmental conservation.

Four creative bakers go head-to-head to have their cupcakes featured at a nonprofit gala benefiting environmental conservation.

Weddings take the cupcake as four bakers go, head to head, to create cupcakes for an industry bash, hosted by celebrity party planner Mindy Weiss.

Weddings take the cupcake as four bakers go, head to head, to create cupcakes for an industry bash, hosted by celebrity party planner Mindy Weiss.

Four past Cupcake Wars (2009) champions return to compete for a chance to have their confections showcased at the renowned 2011 Rose Parade.

Four past Cupcake Wars (2009) champions return to compete for a chance to have their confections showcased at the renowned 2011 Rose Parade.

Bakers vie to have their cupcakes displayed at the L.A. Auto Show's preview.

Bakers vie to have their cupcakes displayed at the L.A. Auto Show's preview.

Four cupcake artists compete to have their sweets showcased at a Cirque du Soleil party in Las Vegas.

Four cupcake artists compete to have their sweets showcased at a Cirque du Soleil party in Las Vegas.

Bakers battle to display their cupcakes at a romantic wine-tasting event.

Bakers battle to display their cupcakes at a romantic wine-tasting event.

Fabio serves as guest judge, when four cupcake artists compete to have their confections served at a romantic Valentine's Day wine tasting.

Fabio serves as guest judge, when four cupcake artists compete to have their confections served at a romantic Valentine's Day wine tasting.

The cupcakes take the stage at the 50th Anniversary of the Hollywood Walk of Fame.

The cupcakes take the stage at the 50th Anniversary of the Hollywood Walk of Fame.

Four past competitors return and compete for a chance to serve their sweets at the Grammy Nominations Concert.