Sydney band Ocean Alley has won triple j's Hottest 100 countdown with their song Confidence.

The Northern Beaches group fielded four songs in the countdown including two songs in the top 10, with Knees coming in at number 10.

Ocean Alley's cover of Player's 1977 song Baby Come Back came in at number 16, and their track Happy Sad kicked off the countdown at number 100.

Their win this year sees a return to an Australian artist winning the countdown after American rapper Kendrick Lamar took out the top spot last year with his song HUMBLE..

It also makes Confidence the 15th song from an Australian artist to win the Hottest 100 in the annual countdown's history.

Triple j's music director Nick Findlay described Confidence as a song "dripping with a level of sun-drenched soul that's straight out of a '70s surf flick".

"Confidence proved to be such an earworm that it transcended the usual garage-ska scene and straight into the hearts of the nation," he said.

"It's a song that led the votes from day one of polling and never stopped its huge trajectory to success."

Coming in at number two in this year's countdown was pro-surfer-turned-DJ Fisher with dance track Losing It, while Travis Scott (featuring Drake) took the gong for third with Sicko Mode.

This year listeners submitted 2.75 million individual song votes, beating last year's record by about 15 per cent.

Of the 100 songs, 65 are by Australian artists — just down from a record 66 in 2016.

WARNING: Explicit language

#10 Ocean Alley — Knees

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#9 Ruby Fields — Dinosaurs

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#8 Billie Eilish — When The Party's Over

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#7 Mallrat — Groceries

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#6 Dean Lewis — Be Alright

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#5 Amy Shark — I Said Hi

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#3 Travis Scott featuring Drake — Sicko Mode

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#2 Fisher — Losing it

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#1 Ocean Alley — Confidence

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