appeared to take a swipe at her ex-husband Api Robin on Tuesday when she .
The comedian, 43, filmed herself sitting on a workout machine as she lip-synched iconic 1995 heartbreak anthem, You Oughta Know by .
The popular single highlights the story of a 'scorned' woman who feels abandoned by a former lover who has moved on with someone new.
'Feeling pretty f***ing hardcore doing 5 min Pilates and blaring @alanis,' Celeste captioned the first video.
She then wrote in the second, 'I don't even need the backing track @alanis,' as she mimicked singing the song without music.
It comes just a few weeks after Celeste 49, weeks after news broke of their shock separation.
Celeste Barber, 43, appeared to take a swipe at her ex-husband Api Robin, 49, on Tuesday when she shared a video of herself enjoying a 'five minute Pilates' session
The Australian comedian shared a video to her Instagram Stories promoting a mascara from her makeup brand BOOIE when she broke her silence.
In her typical fashion, the entertainer joked she was only 'going to talk about mascara, and that's all we're going to talk about – how great this mascara is'.
However, she finished the short clip by leaning in close to the camera and whispering: 'Thank you for all your lovely messages. I really appreciate it. Thank you.'
Api confirmed the couple had decided to end their marriage after 20 years together, a day before Valentine's Day.
'The past few months have been incredibly challenging and deeply heartbreaking for us both,' an Instagram post captioned 'Heavy hearts' began.
'After much reflection, the decision has been made to separate.
'There is still love and respect between us, but sadly we are at capacity and have come to recognise we may want for different things.'
'Our priority remains our children and their wellbeing. We kindly ask for privacy and understanding as we navigate this,' he continued.
Do public breakup messages help or hurt those involved after a long marriage ends?
The comedian shared videos of herself to Instagram as she sat on a workout machine, filming herself in a mirror as she jammed out to a break-up song
