| Curfew | 2024 | Actress | Helen |
| Pretty Red Dress | 2022 | Actress | Candice |
| Alexandra Burke Feat. Pitbull: All Night Long | 2010 | Actress | Alexandra Burke |
| Helping Haiti: Everybody Hurts, B&W Version | 2010 | Actress | Alexandra Burke |
| Helping Haiti: Everybody Hurts, Color Version | 2010 | Actress | Alexandra Burke |
| Alexandra Burke: Hallelujah | 2008 | Actress | Alexandra Burke |
| The Great British Baking Show | 2020 | Thanks | thanks |
| Songs of Praise | 2018–2022 | Soundtrack | performer: "The Truth Is" |
| The Great British Baking Show | 2020 | Soundtrack | performer: "Silent Night" (uncredited) |
| The Official Top 50 Best-Selling Singles of the 90s and 00s TV Special | 2015 | Soundtrack | performer: "Hallelujah" |
| Britain's Got Talent | 2013 | Soundtrack | performer: "The Silence" (uncredited) |
| T4 on the Beach | 2012 | Soundtrack | performer: "Let It Go" |
| Hellcats | 2010 | Soundtrack | Soundtrack ("Broken Heels", uncredited) |
| Dancing on Ice | 2009–2010 | Soundtrack | performer: "Bad Boys" |
| Live from Studio Five | 2009–2010 | Soundtrack | performer: "Bad Boys" |
| So You Think You Can Dance | 2010 | Soundtrack | performer: "Broken Heels" |
| Top of the Pops | 2009 | Soundtrack | performer: "Bad Boys" |
| The Paul O'Grady Show | 2009 | Soundtrack | performer: "Broken Heels", "You Might Need Somebody" |
| The X Factor UK | 2005–2009 | Soundtrack | performer: "Bad Boys", "Everybody in Love" |
| Cheryl Cole's Night In | 2009 | Soundtrack | performer: "Bad Boys" |
| The Xtra Factor | 2008 | Soundtrack | performer: "(You Make Me Feel Like) A Natural Woman" (uncredited) |
| The One Show | 2009–2025 | Self | Self |
| Loose Women | 2010–2024 | Self | Self |
| Strictly Come Dancing: It Takes Two | 2017–2024 | Self | Self - VT during Montell interview |
| RuPaul's Drag Race UK | 2023–2024 | Self | Self - Special Guest |
| Sunday Brunch | 2014–2024 | Self | Self |
| Children in Need | 2023 | Self | Self |
| I Can See Your Voice: UK | 2021–2022 | Self | Self - Guest Music Star |
| Celebrity Catchphrase | 2022 | Self | Self - Contestant |
| Royal British Legion Festival of Remembrance TV Special | 2021 | Self | Self |
| The Great British Bake Off: An Extra Slice | 2021 | Self | Self |
| Celebrity SAS: Who Dares Wins | 2021 | Self | Self - Contestant |
| Soccer AM | 2021 | Self | Self |
| Leigh-Anne: Race, Pop & Power | 2021 | Self | Self |
| Ainsley's Food We Love | 2021 | Self | Self - Special Guest |
| The Great Celebrity Bake Off for SU2C | 2021 | Self | Self - Contestant |
| Lorraine | 2018–2021 | Self | Self - Guest |
| Songs of Praise | 2018–2021 | Self | Self - Judge |
| Dancing on Ice | 2010–2021 | Self | Self - Audience Member |
| The Great British Baking Show | 2020 | Self | Self - Vocalist |
| Morning Live | 2020 | Self | Self |
| The Noughties | 2020 | Self | Self |
| Comedy Game Night | 2020 | Self | Self |
| Sport Relief 2020 | 2020 | Self | Self |
| Jane and Friends | 2018 | Self | Self - Performer |
| Strictly Come Dancing | 2017–2018 | Self | Self - Audience Member |
| Good Morning Britain | 2018 | Self | Self - Guest |
| Ant & Dec's Saturday Night Takeaway | 2018 | Self | Self - Performer |
| Central Tonight | 2018 | Self | Self |
| Midlands Today | 2018 | Self | Self |
| Weekend | 2014–2016 | Self | Self - Guest |
| Saturday Kitchen | 2016 | Self | Self |
| First Dates | 2015 | Self | Self |
| Last Night of the Proms from Around the UK 2015 TV Special | 2015 | Self | Self |
| Mel & Sue | 2015 | Self | Self |
| The X Factor UK | 2005–2014 | Self | Self - Audience Member |
| Keep It in the Family | 2014 | Self | Self - Special Guest |
| Celebrity Chase | 2014 | Self | Self - Contestant |
| Pride of Britain Awards TV Special | 2014 | Self | Self |
| Who Wants to Be a Millionaire | 2014 | Self | Self - Contestant |
| The Nation's Favourite Christmas Song TV Movie | 2012 | Self | Self |
| The Christmas Number One Story TV Movie | 2012 | Self | Self |
| Celebrity Juice | 2012 | Self | Self |
| The Xtra Factor | 2008–2012 | Self | Self - Celebrity Panel |
| The X Factor | 2012 | Self | Self - The X Factor UK 2008 Winner |
| The Nation's Favourite Number 1 Single TV Mini Series | 2012 | Self | Self |
| T4 on the Beach | 2012 | Self | Self - Performer |
| A League of Their Own | 2012 | Self | Self |
| This Morning | 2010–2012 | Self | Self |
| Daybreak | 2012 | Self | Self |
| That Sunday Night Show | 2012 | Self | Self |
| Let's Dance for Comic Relief | 2012 | Self | Self |
| The BRIT Awards 2012 | 2012 | Self | Self |
| 12 Again | 2012 | Self | Self |
| The Talent Show Story | 2012 | Self | Self |
| Peter Andre: The Next Chapter | 2011 | Self | Self |
| The X Factor Poland | 2011 | Self | Self - Special Guest |
| Children in Need 2010 | 2010 | Self | Self |
| Breakfast | 2010 | Self | Self - Singer |
| Magic Numbers TV Series | 2010 | Self | Self |
| T4 on the Beach TV Special | 2010 | Self | Self - Performer |
| 50 Greatest Pop Videos TV Movie | 2010 | Self | Self |
| Sommarkrysset | 2010 | Self | Self |
| Friday Night with Jonathan Ross | 2010 | Self | Self - Guest |
| Koko Pop TV Series | 2010 | Self | Self |
| Ant & Dec's Push the Button | 2010 | Self | Self |
| Live from Studio Five | 2009–2010 | Self | Self |
| The BRITs Red Carpet TV Special | 2010 | Self | Self |
| So You Think You Can Dance | 2010 | Self | Self |
| Top of the Pops | 2008–2009 | Self | Self |
| Ant & Dec's Christmas Show | 2009 | Self | Self - Performer |
| The Paul O'Grady Show | 2009 | Self | Self |
| The Royal Variety Performance 2009 | 2009 | Self | Self - Performer |
| Cheryl Cole's Night In | 2009 | Self | Self |
| T4's Stars of 2009 TV Special | 2009 | Self | Self |
| Xposé | 2009 | Self | Self |
| Pride of Britain Awards 2009 TV Special | 2009 | Self | Self |
| The MOBO Awards TV Special | 2009 | Self | Self |
| Queens of British Pop | 2009 | Self | Self |
| Brit Awards 2009 | 2009 | Self | Self |
| The BRITs 2009 Encore TV Special | 2009 | Self | Self |
| Elton's New Year Party: Live from The O2 TV Special | 2008 | Self | Self - Special Guest |
| GMTV | 2008 | Self | Self - Performer |
| Star for a Night TV Series | 2001 | Self | Self - Contestant |
| Songs of Praise | 2022 | Archive Footage | Self - Performer (archive footage) |
| Strictly Come Dancing | 2020 | Archive Footage | Self (archive footage) |
| Ultimate Cover Versions at the BBC | 2015 | Archive Footage | Self (archive footage) |
| The Official Top 50 Best-Selling Singles of the 90s and 00s TV Special | 2015 | Archive Footage | Self (archive footage) |
| Almost Famous III | 2010 | Archive Footage | Self (archive footage) |
| The Xtra Factor | 2008 | Archive Footage | Self (archive footage) |