• 
  Sara Cox

  Herself - Host
• 
  Rufus Hound

  Himself - Host
• 
  Melanie Blatt

  Herself - Backstage Host
• 
  Cheryl

  Herself (as Girls Aloud)
• 
  Nadine Coyle

  Herself (as Girls Aloud)
• 
  Sarah Harding

  Herself (as Girls Aloud)
• 
  Elbow

  Themselves
• 
  Adele

  Herself

• 
  Duffy

  Herself
• 
  Lady Gaga

  Herself
• 
  Alexandra Burke

  Herself
• 
  Florence and the Machine

  Themselves

• 
  Nicole Appleton

  Herself - Backstage Host
• 
  Bono

  Himself
• 
  Alan Carr

  Himself

• 
  Gok Wan

  Himself
• 
  Will Young

  Himself