| Title | Year | Status | Character |
|---|
| King of the Golden Sun | 2018 | TV Series performer - 1 episode filming | |
| The Shack | 2017 | performer: "Love Goes On" completed | |
| Strictly Come Dancing | | TV Series writer - 1 episode, 2016 performer - 1 episode, 2014 | |
| Kirstie's Handmade Christmas | 2016 | TV Series performer - 1 episode | |
| Office Christmas Party | 2016 | performer: "Underneath the Tree" / writer: "Underneath the Tree" | |
| Alpha and Omega: Dino Digs | 2016 | Video performer: "Stronger What Doesn't Kill You" | |
| Britain's Got More Talent | 2016 | TV Series performer - 1 episode | |
| The Voice | 2016 | TV Series performer - 1 episode | |
| Supergirl | 2016 | TV Series performer - 1 episode | |
| Dolezal Backstage | | TV Series documentary performer - 1 episode, 2015 writer - 1 episode, 2015 | |
| The Women's Football Show | 2015 | TV Series performer - 1 episode | |
| Santa Bárbara | 2015 | TV Series performer: "Invincible" | |
| Coronation Street | 2015 | TV Series performer - 1 episode | |
| Lip Sync Battle | 2015 | TV Series performer - 1 episode | |
| 2015 Billboard Music Awards | 2015 | TV Special performer: "Invincible" | |
| IHeartRadio Music Awards | 2015 | TV Special performer: "Heartbeat Song" | |
| The Tonight Show Starring Jimmy Fallon | 2015 | TV Series performer - 2 episodes | |
| Bella and the Bulldogs | 2015 | TV Series writer - 1 episode | |
| UK Championship Snooker | 2014 | TV Series performer - 2 episodes | |
| RuPaul's Drag Race | 2014 | TV Series performer - 1 episode | |
| Dancing with the Stars | | TV Series 3 episodes, 2006 - 2012 writer - 2 episodes, 2011 - 2014 performer - 1 episode, 2011 | |
| Snooker: Welsh Open | 2014 | TV Series performer - 3 episodes | |
| One Hit Wonderland | 2013 | TV Series documentary performer - 1 episode | |
| Late Night with Jimmy Fallon | | TV Series performer - 1 episode, 2013 writer - 1 episode, 2013 | |
| Kelly Clarkson's Cautionary Christmas Music Tale | 2013 | TV Special performer: "Run Rudolph Run", "Silent Night", "My Favorite Things", "Wrapped in Red", "Please Come Home for Christmas Bells Will Be Ringing", "Have Yourself a Merry Little Christmas", "White Christmas", "Underneath the Tree" - uncredited / writer: "Wrapped in Red", "Underneath the Tree" - uncredited | |
| The Crazy Ones | 2013 | TV Series performer - 1 episode | |
| The Client List | | TV Series performer - 1 episode, 2013 writer - 1 episode, 2013 | |
| The 55th Annual Grammy Awards | 2013 | TV Special performer: "Tennessee Waltz", "You Make Me Feel Like A Natural Woman" | |
| VH1 Divas 2012 | 2012 | TV Movie performer: "Catch My Breath" / writer: "Catch My Breath" | |
| The X Factor | 2008-2012 | TV Series performer - 3 episodes | |
| Blake Shelton's Not So Family Christmas | 2012 | TV Special performer: "There's a New Kid in Town" - uncredited | |
| Duets | 2012 | TV Series performer - 9 episodes | |
| Glee | 2012 | TV Series writer - 1 episode | |
| The Voice UK | 2012 | TV Series performer - 1 episode | |
| Girls | 2012 | TV Series performer - 1 episode | |
| The 54th Annual Grammy Awards | 2012 | TV Special performer: "Don't You Wanna Stay" | |
| Saturday Night Live | 2005-2012 | TV Series performer - 3 episodes | |
| The Tonight Show with Jay Leno | 2011 | TV Series performer - 1 episode | |
| Britain's Got Talent | 2011 | TV Series writer - 1 episode | |
| Dancing with the Stars | 2009-2011 | TV Series writer - 2 episodes | |
| Top 20 Country Countdown | 2011 | TV Series performer - 4 episodes | |
| The Office | 2011 | TV Series performer - 1 episode | |
| Helden von morgen | 2011 | TV Series writer - 1 episode | |
| 20 to 1 | 2010 | TV Series documentary performer - 1 episode | |
| American Idol | | TV Series performer - 20 episodes, 2002 - 2004 writer - 3 episodes, 2003 - 2010 | |
| Dancing on Ice | | TV Series performer - 1 episode, 2010 writer - 1 episode, 2010 | |
| Karaoke Revolution | 2009 | Video Game performer: "My Life Would Suck Without You" | |
| So You Think You Can Dance | | TV Series performer - 11 episodes, 2005 - 2009 writer - 9 episodes, 2006 - 2009 | |
| The Hills | | TV Series performer - 7 episodes, 2009 writer - 3 episodes, 2009 | |
| Caras & Bocas | 2009 | TV Series performer: "Already Gone" / writer: "Already Gone" | |
| All I Ever Wanted: Bonus DVD | 2009 | Video short performer: "My Life Would Suck Without You" | |
| The Paul O'Grady Show | | TV Series performer - 1 episode, 2009 writer - 1 episode, 2009 | |
| X Factor | 2009 | TV Series writer - 1 episode | |
| Headline Country | 2008 | TV Series performer - 1 episode | |
| Deutschland sucht den Superstar | 2007-2008 | TV Series writer - 2 episodes | |
| One Tree Hill | 2008 | TV Series 1 episode | |
| CMT Hot 20 Countdown | | TV Series performer - 8 episodes, 2007 writer - 2 episodes, 2007 | |
| Idols | 2005-2007 | TV Series writer - 3 episodes | |
| Cold Case | 2007 | TV Series performer - 1 episode | |
| Smallville | 2007 | TV Series performer - 1 episode | |
| Australian Idol | | TV Series writer - 4 episodes, 2003 - 2007 performer - 1 episode, 2003 | |
| It Takes Two | 2007 | TV Series writer - 2 episodes | |
| Idool 2007 | 2007 | TV Series writer - 3 episodes | |
| CMT Giants | 2006 | TV Series performer - 1 episode | |
| Las Vegas | 2006 | TV Series performer - 1 episode | |
| Idol - Jakten på en superstjerne | 2004-2006 | TV Series writer - 2 episodes | |
| Idols! | 2006 | TV Series writer - 1 episode | |
| Drawn Together | 2006 | TV Series 1 episode | |
| Idol | 2005 | TV Series writer - 1 episode | |
| Belíssima | 2005 | TV Series performer: "Because Of You" / writer: "Because Of You" | |
| Six Feet Under | 2005 | TV Series 1 episode | |
| Kelly, Ruben & Fantasia: Home for Christmas | 2004 | TV Special performer: "Every Time Christmas Comes Around", "Jesus What a Wonderful Child", "Joy to the World" | |
| Indonesian Idol | 2004 | TV Series writer - 1 episode | |
| The Princess Diaries 2: Royal Engagement | 2004 | performer: "Breakaway" | |
| Malaysian Idol | 2004 | TV Series writer - 1 episode | |
| Ella Enchanted | 2004 | performer: "Respect" | |
| Jingle Ball Rock | 2003 | TV Movie performer: "Grown-Up Christmas List", "The Trouble With Love Is" / writer: "The Trouble With Love Is" | |
| An American Idol Christmas | 2003 | TV Movie documentary performer: "Grown Up Christmas List" | |
| Pop Idol | | TV Series performer - 1 episode, 2003 writer - 1 episode, 2003 | |
| Miss Independent | 2003 | Video performer: "A Moment Like This", "Miss Independent", "Some Kind Of Miracle", "Low", "Respect", "Natural Woman", "Before Your Love" | |
| Love Actually | 2003 | as Clarkson, "The Trouble With Love Is" 2003 / performer: "The Trouble With Love Is" 2003 | |
| From Justin to Kelly | 2003 | performer: "I Won't Stand in Line", "Vacation", "The Luv' The Bounce", "Forever Part of Me", "Timeless", "Madness", "Anytime", "That's the Way I Like It", "Sugar", "Brighter Star" | |
| Before Your Love/A Moment Like This | 2002 | Video short performer: "Before Your Love", "A Moment Like This" | |
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