The singer, who is currently touring Continental Europe in support of her latest album, gave thanks in a video message played for guests at the Grosvenor House Hotel.
"I won it on my last album as well... but I was secretly pregnant, so I didn't enjoy the night too well," she said, according to the BBC. "To win it this time is truly, truly humbling."
Ed Sheeran, James Bay and Skepta Snag Ivor Novello Award Nominations
The “Ivors,” as they’re fondly known, is the most cherished of the many galas on the British music industry calendar. Its mission is to “celebrate, honor and reward excellence in songwriting and composing.” For the artists, an Ivor Novello trophy is as prestigious as they come.
Damon Albarn was among the big winners on the day, taking out the lifetime achievement award. Blur guitarist Graham Coxon was on hand to present the award to his bandmate, who he said had already "fitted in two lifetimes of work... so far". Albarn noted his accolade was an “extraordinary, life-affirming honor."
Other major categories when to Portishead’s Geoff Barrow, Beth Gibbons and Adrian Utley for PRS for Music’ Outstanding Contribution to British Music (Barrow also won for his work on the Ex_Machina score); Bryan Adams, who claimed the PRS for Music Special International Award; and Simple Minds’ Charlie Burchill, Jim Kerr and Mick MacNeil for Outstanding Song Collection.
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Twenty-four hour party people the Happy Mondays – comprised of Mark Day, Paul Davis, Paul Ryder, Shaun Ryder and Gary Whelan – won the Ivors Inspiration Award.
And in one of the luncheon event's big surprises, Jamie Lawson scooped the Best Song Musically and Lyrically category with "Wasn't Expecting That," beating out songs by Ed Sheeran and Wolf Alice in the process.
The Ivors are presented by the British Academy of Songwriters, Composers & Authors (BASCA), are judged by the U.K. songwriting and composing community and have been sponsored by PRS for Music since 1974.
Full list of winners for the 61st Ivor Novello Awards:
PRS for Music Most Performed Work
"Hold Back The River" -- Written by Iain Archer and James Bay
Published in the U.K. by Kobalt Music Publishing and Spirit B-Unique Music
Best Television Soundtrack
London Spy -- Composed by Keefus Ciancia and David Holmes
Published in the U.K. by Sony/ATV Music Publishing and Kobalt Music Publishing
The Ivors Classical Music Award
Best Song Musically and Lyrically
"Wasn’t Expecting That" -- Written by Jamie Lawson
Published in the U.K. by Imagem Music
The Ivors Inspiration Award
Mark Day, Paul Davis, Paul Ryder, Shaun Ryder and Gary Whelan
"Darling Arithmetic" -- Written by Conor O’Brien
Published in the UK by Domino Publishing Company
Songwriter of the Year
Best Original Film Score
Composed by Geoff Barrow and Ben Salisbury
Published in the U.K. by Universal Music Publishing
Best Contemporary Song
"All My Friends" -- Written by James Carter, Oliver Lee, Cass Lowe and Chance The Rapper
Published in the U.K. by Sony/ATV Music Publishing
Outstanding Song Collection
Charlie Burchill, Jim Kerr and Mick MacNeil
PRS for Music Outstanding Contribution to British Music
Geoff Barrow, Beth Gibbons and Adrian Utley
PRS for Music Special International Award