From Wikipedia:
“Toni Watson, known professionally as Tones and I, is an Australian singer-songwriter. She released her debut single, ”Johnny Run Away“, on 1 March 2019. Her follow-up single, ”Dance Monkey“, was released on 10 May 2019 and reached number one on the Australian, Austrian, Belgian, Danish, Dutch, Finnish, German, Irish, New Zealand, Norwegian, Swedish, Swiss, South African, and UK singles charts. She released her debut EP, The Kids Are Coming, on 30 August 2019.”

From Tones And I Official Website:
"ORIGINALLY FROM AUSTRALIA’S MORNINGTON PENINSULA, TONES AND I JOURNEYED TO BYRON BAY IN EARLY 2018 TO TAKE A CHANCE AT BUSKING. ON THE FIRST DAY SHE HAD CROWDS SPILLING ONTO THE STREET, SO TONES QUIT HER RETAIL JOB AND DECIDED TO MAKE BYRON HER NEW HOME WHERE SHE LIVED OUT OF HER VAN FOR THE YEAR. TONES IS HAVING A MASSIVE BREAKOUT YEAR IN 2019 THAT STARTED WITH HER DEBUT SINGLE ‘JOHNNY RUNAWAY ’ RELEASING ON MARCH 1, FOLLOWED BY WHAT’S BECOME A HUGE GLOBAL HIT - ‘DANCE MONKEY’. THE TRACK WAS RELEASED MAY 10 AND HAS REACHED #1 ON OFFICIAL SINGLES CHARTS IN OVER 11 COUNTRIES INCLUDING UK, IRELAND, GERMANY, AUSTRALIA AND MORE, HAS AMASSED HUNDREDS OF MILLIONS OF STREAMS AND TONES NOW HOLDS THE RECORD FOR THE LONGEST CONSECUTIVE #1 FOR AN AUSTRALIAN ARTIST ON THE ARIA SINGLES CHART. A MASSIVE ACHIEVEMENT FOR SOMEONE WHO WAS BUSKING ON THE STREETS AND LIVING OUT OF A VAN ONLY 6 MONTHS AGO."

Go check out her newly-released EP, The Kids Are Coming.
It. Is. Amazing.

She's now number 1 on the Big Top 40.