The Wizard of Oz: Cake making competition. Four bakers compete for the chance to feature their creations at a party celebrating the re-release of classic movie The Wizard of Oz. S9 Ep4
Match.com: Baking competition. The bakers compete to have their cupcakes featured at an exclusive event hosted by dating website Match.com in Los Angeles.
Aquarium of the Pacific: Cake making competition. The bakers are tasked with using sustainable seafood to create cakes celebrating Explorers Day at the Aquarium of the Pacific. S9 Ep11
Miss America: Baking competition. Mallory Hagan acts as guest judge to four bakers as they cook up something to celebrate the return of the Miss America Pageant to Atlantic City. S9 Ep10
Rob Zombie's Great American Nightmare: The winner of this challenge will get their cakes featured at the opening of Rob Zombie's Great American Nightmare attraction. S9 Ep8
Hanson: The Bakers Battle to have their creations appear at a concert and aftershow party for the pop rock superstars Hanson. The Hanson boys also take a turn as guest judges. S9 Ep7
LA Bridal Bash: Mother and daughter teams fight to have their cupcakes at the centre of an LA bridal bash hosted by high-end wedding planner Kristin Banta. S9 Ep6
The Wizard of Oz: Cake making competition. Four bakers compete for the chance to feature their creations at a party celebrating the re-release of classic movie The Wizard of Oz. S9 Ep4
Marilyn Monroe's 60th: Cake making competition. Four returning bakers compete to feature their cupcakes at an event honouring 60 years of Marilyn Monroe's Hollywood hand prints. S9 Ep2
The Honest Company: Cake making competition. Four talented bakers battle to have their organic cupcakes featured at a launch party for Jessica Alba's new brand.
Match.com: Baking competition. The bakers compete to have their cupcakes featured at an exclusive event hosted by dating website Match.com in Los Angeles.
Rob Zombie's Great American Nightmare: The winner of this challenge will get their cakes featured at the opening of Rob Zombie's Great American Nightmare attraction. S9 Ep8
Hanson: The Bakers Battle to have their creations appear at a concert and aftershow party for the pop rock superstars Hanson. The Hanson boys also take a turn as guest judges. S9 Ep7
Aquarium of the Pacific: Cake making competition. The bakers are tasked with using sustainable seafood to create cakes celebrating Explorers Day at the Aquarium of the Pacific. S9 Ep11
Miss America: Baking competition. Mallory Hagan acts as guest judge to four bakers as they cook up something to celebrate the return of the Miss America Pageant to Atlantic City. S9 Ep10
Taylor Dayne's 80s Party: Cake making competition. Four bakers battle it out to serve their cupcakes at a VIP kids' birthday party for '80s pop star and guest judge Taylor Dayne. S8 Ep13
Blue Man Group: Cake making competition. Former baker's assistants battle it out to have their cupcakes featured at a VIP Las Vegas party for the world-renowned Blue Man Group. S8 Ep12
Cupcakes 'R' Us: Cake making competition. Four bakers unleash their inner child as they compete to serve their creations at a black-tie awards gala for the Chicago Toy and Game Fair. S8 Ep11
Comedy Cupcakes: Cake making competition. The contestants have to bring the funny to compete for a chance to be front and centre at a party for Variety magazine's Power of Comedy. S8 Ep10
Fran Drescher's Cancer Schmancer: Cake making competition. Vegan bakers compete to have their creations served at an event for Fran Drescher's Cancer Schmancer charity. S8 Ep9
The Harlem Globetrotters: Cake making competition. Guest judge Herbert Lang helps decide which of the four bakers gets to serve their cupcakes at a Harlem Globetrotters event. S8 Ep8
Cosmic Cupcakes: Cake making competition. Four bakers create cupcakes for a black-tie gala event celebrating the space shuttle Endeavour's arrival in Los Angeles. S8 Ep7
Ace of Cupcakes: Cake making competition. Cupcakes with a poker theme are created for a Hollywood party. Actress Mimi Rogers is the guest judge. S8 Ep6
South Beach Wine and Food Festival: Cake making competition. Cupcakes for the South Beach Wine and Food Festival in Miami are prepared by four returning bakers. S8 Ep5
Tiffani Thiessen's Birthday Bash: Cake making competition. Four bakers compete to serve their cupcakes at a birthday bash for guest judge and Saved by the Bell star Tiffani Thiessen. S8 Ep4
People's Choice Awards: Cake making competition. Four bakers compete for the opportunity to be front and centre at a celebrity-packed VIP party for The People's Choice Awards. S8 Ep3
'Weird Al' Yankovic: Cake making competition. Four competitors try to bake their way to an exclusive book release party for iconic comedian and guest judge 'Weird Al' Yankovic. S8 Ep2
Fan Favourites: Cake making competition. Four all-star bakers, handpicked by fans of the series, compete to serve their cupcakes at a charity gala hosted by Lance Bass. S8 Ep1
Annie the Musical: Cake making competition. Four bakers fight for the chance to have their cupcakes featured at the centre of a party celebrating the revival of Annie - The Musical. S9 Ep5
The Wizard of Oz: Cake making competition. Four bakers compete for the chance to feature their creations at a party celebrating the re-release of classic movie The Wizard of Oz. S9 Ep4
Marilyn Monroe's 60th: Cake making competition. Four returning bakers compete to feature their cupcakes at an event honouring 60 years of Marilyn Monroe's Hollywood hand prints. S9 Ep2
The Honest Company: Cake making competition. Four talented bakers battle to have their organic cupcakes featured at a launch party for Jessica Alba's new brand.
LA Bridal Bash: Cake making competition. Mother and daughter teams fight to have their cupcakes at the centre of an LA bridal bash hosted by high-end wedding planner Kristin Banta. S9 Ep6
Annie the Musical: Cake making competition. Four bakers fight for the chance to have their cupcakes featured at the centre of a party celebrating the revival of Annie - The Musical. S9 Ep5
The Wizard of Oz: Cake making competition. Four bakers compete for the chance to feature their creations at a party celebrating the re-release of classic movie The Wizard of Oz. S9 Ep4
Marilyn Monroe's 60th: Cake making competition. Four returning bakers compete to feature their cupcakes at an event honouring 60 years of Marilyn Monroe's Hollywood hand prints. S9 Ep2
The Honest Company: Cake making competition. Four talented bakers battle to have their organic cupcakes featured at a launch party for Jessica Alba's new brand.
Marilyn Monroe's 60th: Cake making competition. Four returning bakers compete to feature their cupcakes at an event honouring 60 years of Marilyn Monroe's Hollywood hand prints.
The Honest Company: Cake making competition. Four talented bakers battle to have their organic cupcakes featured at a launch party for Jessica Alba's new brand.
Taylor Dayne's 80s Party: Cake making competition. Four bakers battle it out to serve their cupcakes at a VIP kids' birthday party for 80s pop icon and guest judge Taylor Dayne.
Blue Man Group: Cake making competition. Former baker's assistants battle it out to have their cupcakes featured at a VIP Las Vegas party for the world-renowned Blue Man Group.
Cupcakes 'R' Us: Cake making competition. Four bakers unleash their inner child as they compete to serve their creations at a black tie awards gala for the Chicago Toy and Game Fair.