The Coldplay singer was joined by his children for a jam session in Malibu and fans have been blown away by the youngsters' incredible vocals. Clips from the low-key mini concert have surfaced on Instagram, showing Apple, 12, and ten-year-old Moses taking to the stage.
Apple, who was casual in a pink T-shirt and track pants, was the first to perform with her lookalike dad. She chose "Just a Little Bit of Your Heart" by Ariana Grande, showing that she has the potential to be the music world's next pop princess.
Moses followed and wowed with his rendition of House of "Gold"by twenty one pilots. Chris, 39, accompanied his son on guitar but this time the Martins were joined by even more megastars – Beck, Red Hot Chilli Peppers drummer Chad Smith and Davide Rossi.
Chris, whose divorce from former wife Gwyneth was finalized in July, was performing at a Malibu benefit gig for the Boys & Girls Club.
This isn't the first time that the singer has invited his young children on stage. Apple and Moses showed off their vocals at Glastonbury in June, when Coldplay headlined for a record fourth time.
The band performed a track by Viola Beach, the group who tragically died in a car accident in February.
Along with their two cousins, Apple and Moses joined in on backing vocals and looked to be having the time of their life as they sang their hearts out in the tribute.