• 
  Sara Cox

  Herself - Host
• 
  Rufus Hound

  Himself - Host
• 
  Melanie Blatt

  Herself - Backstage Host
• 
  Cheryl

  Herself (as Cheryl Cole)
• 
  Mark Owen

  Himself
• 
  Nadine Coyle

  Herself
• 
  Sarah Harding

  Herself
• 
  Nicola Roberts

  Herself

• 
  Duffy

  Herself

• 
  Nicole Appleton

  Herself - Backstage Host
• 
  Alan Carr

  Himself
• 
  Gok Wan

  Himself
• 
  Kylie Minogue

  Herself
• 
  Mathew Horne

  Himself
• 
  Katy Perry

  Herself

• 
  James Corden

  Himself