Cirkut

Henry Russell Walter (born April 23, 1986), known professionally as Cirkut, is a Canadian record producer and songwriter. He has produced and co-written commercially successful singles since 2008. His credits include songs and albums for prominent artists including Katy Perry, Becky G, Ava Max, Nicki Minaj, Lady Gaga, Charli XCX, R. City, The Weeknd, Kesha, Ciara, Pitbull, Britney Spears, Maroon 5, Ne-Yo, Rihanna, Adam Lambert, B.o.B, Marina and the Diamonds, will.i.am, Jungkook, Kygo, Juicy J, Sam Smith, and Ed Sheeran, among others. He has numerous collaborations with American record producer Dr. Luke and Swedish producer Max Martin.

Walter has written and produced the Billboard Hot 100-number one singles "Part of Me", "Roar" and "Dark Horse" by Katy Perry, "Wrecking Ball" by Miley Cyrus, "Girls Like You" by Maroon 5, and "Starboy" and "Die for You (Remix)" by the Weeknd. He co-produced Jungkook's 2023 single "Standing Next to You". He has co-written and produced every song on Becky G's Play It Again, R. City's What Dreams Are Made Of, Ava Max's Heaven & Hell and Diamonds & Dancefloors, and Lady Gaga's Mayhem.

Walter has won four Grammy Awards, including Best Urban Contemporary Album for the Weeknd's Starboy, Best Dance Pop Recording for Lady Gaga's "Abracadabra", Best Pop Vocal Album for Mayhem, and was named the 2026 Producer of the Year.

Life and career Walter was born in Ottawa and mostly lived in Montreal. In his teenage years he had moved to Halifax where he attended Armbrae Academy and St. Pat's High School in Halifax, Nova Scotia where he met some other musical artists. He then moved to Toronto in 2004. He co-produced the Britney Spears song "Mmm Papi" which appeared on her 2008 album Circus. He sent it as an instrumental track to Kobalt Music Group via their attorney Chris Taylor, where songwriter Nicole Morier began using it to write with Britney Spears.

Walter opened Dream House Studios in Toronto. He then relocated to Los Angeles, California. He co-produced "Part of Me", the title song to Katy Perry's 2012 concert film Katy Perry: Part of Me. Walter was also responsible for producing and co-writing the Weeknd's track "High for This". In 2016, he co-produced and co-wrote 9 songs on the Weeknd's album Starboy.

Discography Title Year Album Writer Producer Remix "Mmm Papi" Taio Cruz – TY.O "You Da One", "Where Have You Been", "Fool in Love" Rihanna – Talk That Talk "Turn All The Lights On" T-Pain – Revolver "Never Close Our Eyes", "Better Than I Know Myself" 2012 Adam Lambert – Trespassing "Part of Me", "Wide Awake" Katy Perry – Teenage Dream: The Complete Confection "Problem (The Monster Remix)"Becky G – Hotel Transylvania Soundtrack "Young Forever", "Va Va Voom", "Masquerade" Nicki Minaj – Pink Friday: Roman Reloaded "Brokenhearted" Karmin – Hello "Both of Us" , "Strange Clouds" , "Arena" B.o.B – Strange Clouds "Primadonna", "Lies", "How To Be A Heartbreaker" Marina and the Diamonds – Electra Heart "One More Time" Baby E – N/A "High For This" The Weeknd – Trilogy "Wish U Were Here" Cody Simpson – Paradise "Rock Me" One Direction – Take Me Home "Oath" Cher Lloyd feat Becky G – Sticks + Stones "Warrior", "Die Young", "C'mon", "Thinking of You", "Crazy Kids", "Wherever You Are", "Dirty Love", "Wonderland", "Only Wanna Dance With You", "Supernatural", "Gold Trans Am", "Last Goodbye" Kesha – Warrior "Till The World Ends (Twister Remix)" Britney Spears – N/A "Die Young", "Supernatural"Kesha – Deconstructed "Fall Down" , "Far Away from Home" , "Geekin" 2013will.i.am – #willpower "Ooh La La"Britney Spears – Music From and Inspired by the Smurfs 2 "Vacation"G.R.L. – Music From and Inspired by the Smurfs 2 "Walks Like Rihanna"The Wanted – Word of Mouth "Play It Again", "Can't Get Enough" , "Zoomin' Zoomin", "Built for This", "Lovin' What You Do"Becky G – Play It Again (EP) "Roar", "Legendary Lovers", "Birthday", "Unconditionally", "Dark Horse" , "International Smile", "Ghost"Katy Perry – Prism "Wrecking Ball"Miley Cyrus – Bangerz "Harder We Fall", "Excuse My Rude", "Gold"Jessie J – Alive "Smokin Rollin", "Bounce It"Juicy J – Stay Trippy "Give It 2 U"Robin Thicke – Blurred Lines "Brightest Morning Star"Britney Spears – Britney Jean "Timber" Pitbull – Global Warming: Meltdown "Show Me What You Got", "Ugly Heart", "Rewind" 2014 G.R.L. – G.R.L."Quiero Bailar (All Through The Night)" 3BallMTY – Globall "Dare (La La La)" Shakira – Shakira "La La La (Brazil 2014)" Shakira – One Love, One Rhythm - The 2014 FIFA World Cup Official Album "We Are One (Ole Ola)" Pitbull – One Love, One Rhythm - The 2014 FIFA World Cup Official Album "Wild Wild Love" Pitbull – Globalization "Zipper"Jason Derulo – Talk Dirty "Shower", "Can't Stop Dancin'", "Can't Get Enough (Spanish Version)" Becky G – N/A "I Don't Mind" Usher – N/A "Get on Your Knees" , "Only ", "Trini Dem Girls" , "The Night is Still Young", "Pills N Potions" Nicki Minaj – The Pinkprint "She Knows" Ne-Yo – Non-Fiction "Stayin Out All Night" Wiz Khalifa – Blacc Hollywood "Sugar" Maroon 5 – V "Low" , Juicy J – The Hustle Continues "Never Been in Love", "One More" Elliphant – One More "Completement Fou", "Coca Sans Bulles", "Florence En Italie", "Un Jour Viendra" Yelle – Complètement fou "This Is How We Roll"2015 Fifth Harmony – Reflection "Lighthouse" G.R.L. – N/A "For Everybody" Juicy J, Wiz Khalifa, R. City – N/A "Dance Like We're Makin' Love", "Give Me Love", "Lullaby", "Kiss N Tell", "Special Edition" Ciara – Jackie "Best People in the World"Elliphant – N/A "The Water Dance"Chris Porter – The Water Dance "Once in a Lifetime" Flo Rida – My House "Like This", "Locked Away" , "Checking for You", "Take You Down", "Broadway", "Over", "Make Up", "Again", "Live by the Gun", "Slave to the Dollar", "Save My Soul", "Crazy Love", "Don't You Worry", "Our Story" R. City – What Dreams Are Made Of "Marching Band" R. Kelly – The Buffet "Lovin' So Hard", "Break a Sweat", "You Love It" Becky G – N/A "Everybody" , "Love Me Badder" Elliphant – Living Life Golden "Whip It!" , "Ain't Too Cool" Lunchmoney Lewis – N/A "Silk Road"Rick Ross – Black Market "Ain't Your Mama"2016 Jennifer Lopez – N/A "Tabú" Pablo Alborán, Ava Max – Tabú "Greenlight" Pitbull – Climate Change "Guys My Age"Hey Violet – From the Outside "Starboy" , "False Alarm", "Reminder", "Secrets", "Six Feet Under", "Ordinary Life", "Nothing Without You", "I Feel It Coming" The Weeknd – Starboy "Bang Bang" DJ Fresh, Diplo – N/A "Another Love Song" 2017Ne-Yo – N/A "I Don't Want It at All", "Slow It Down"Kim Petras – N/A "All Night" Big Boi – Boomiverse "Ugly"Jaira Burns – N/A "A Little Work"Fergie – Double Dutchess "Girls Like You" 2018Maroon 5 – Red Pill Blues "Savior" Iggy Azalea – N/A "Hurt You" The Weeknd – My Dear Melancholy "Heart to Break", "Can't Do Better", "All the Time"Kim Petras – N/A "Any Weather"Birdman – Birdman presents: Before Anythang (Soundtrack) "Nights Like These", "On Ur Mind", "Ocean Sure"Ne-Yo – Good Man "Animal", "Priceless"Trey Songz – Tremaine the Album "Come See About Me"Nicki Minaj – Queen "Creep on Me" Gashi – Gashi "Treasure Island""Sweet but Psycho" Ava Max – Heaven & Hell "So Am I", "Torn", "Salt"2019 "Kings & Queens", "Who's Laughing Now", "OMG What's Happening", "Heaven", "Naked", "Tattoo", "Call Me Tonight", "Born to the Night", "Take You to Hell", "Belladonna", "Rumors", "My Head & My Heart"2020 "On Me" "EveryTime I Cry"2021 "Let you" "Echo" , "One Light" , "Convince Me Otherwise" Maroon 5 - Jordi "Hurricane" "Tears in the Club"FKA twigs – Caprisongs "House on Fire" 2022 "Hold Me Closer" Elton John and Britney Spears – The Lockdown Sessions "Maybe You're the Problem", "Million Dollar Baby", "Weapons", "Dancing's Done" "Star Walkin' (League of Legends Worlds Anthem)""Everything to Everyone" and "Moon" "Press It (Fast & Furious Drift Tape/Phonk Vol 1)"Bludnymph"Disaster" "Unholy" "Lose You", "How to Cry" 2023 "Sleepwalker", "Ghost", "Hold Up (Wait a Minute)", "Diamonds & Dancefloors", "In the Dark", "Turn Off the Lights", "One of Us", "Get Outta My Heart", "Cold as Ice", "Last Night on Earth" "Red Flags" "Lights Out", "Watch Me", "End of the World", "Grim Reaper"Bludnymph"Oral Hex (Spell on You)" "Bite Me" "King of Hearts", "Claws" Kim Petras – Feed the Beast "Seven" "Y.O.Universe"Vcha – SeVit (New Light) Vulgar Sam Smith & Madonna – non-album single "Drown", "My Favorite Drug", "Imagination", "Selfish", "Conditions" 2024 Justin Timberlake – Everything I Thought It Was "360", "Rewind", "365"Charli XCX - Brat "Brought The Heat Back"Enhypen - Romance: Untold "Wonder"Katy Perry - 143 "APT." , "Vampirehollie"Rosé - Rosie "Disease"Lady Gaga - Mayhem "It Girl"2025 JADE - That's Showbiz Baby "Big Sleep," "Red Terror" The Weeknd – Hurry Up Tomorrow "Abracadabra", "Garden of Eden", "Perfect Celebrity", "Vanish into You", "Killah" , "Zombieboy", "LoveDrug", "How Bad Do U Want Me", "Don't Call Tonight", "Shadow of a Man", "The Beast", "Can't Stop the High", "Kill for Love", "The Dead Dance" Lady Gaga - Mayhem "Opening", "In Other Words", "A Little More"Ed Sheeran - Play "AEOMG" Coco Jones- Why Not More? "Squeak"2026 Bludnymph "Go" Blackpink - Deadline"Goals", "Game Time", "Illuminate", "Three Nations", "In the Stars" (remix), "Blessings", "Lighter"Various Artists - FIFA World Cup 2026 Official Album "Runway"Lady Gaga and Doechii

Awards and nominations + Award ceremony Year Nominee/Work Category Result Grammy Awards 2014 "Roar" Song of the Year Producer of the Year 2015 Songwriter of the Year 2016 Producer of the Year 2026 Primetime Emmy Awards 2026 "The Dead Dance" Outstanding Original Music and Lyrics