By Katie Storey For Daily Mail Australia
Published: 00:03 BST, 4 May 2019 | Updated: 00:08 BST, 4 May 2019
They're big Billie Eilish fans, so it's no surprise Bec Hewitt and her youngest daughter Ava, eight, snapped up tickets to the singer's Melbourne concert.
Billie performed on Friday night at Margaret Court Arena, but little Ava gave the star a run for her money, as she eagerly sang along to every song in the crowd.
Taking to Instagram, former Home and Away star Bec shared several videos of her mini-me cutely 'singing her heart out' and told fans: 'Yep. She knows EVERY SINGLE WORD.'
Billie's biggest fan: Bec Hewitt shared a series of cute videos of daughter Ava, eight, singing her heart out at Billie Eilish's show in Melbourne on Friday night
In the videos, Ava appears to be having a ball while watching Billie perform.
Looking every inch the true fan, she was seen sporting a Billie Eilish red beanie, as she jumped around in the crowd with her mum and 13-year-old sister Mia.
Bec joked that Ava had loved the concert so much she refused to take off her beanie hat when she was back home in bed, while Ava posted that she'd had 'the best night ever' at Eilish's show.
Proud mum: 35-year-old actress Bec couldn't resist sharing how