Talking of the bittersweet moment he received four yeses when he auditioned just after Jade, Calum told us he would have dropped out if his older sister had been hurt too much by the snub she received from Simon Cowell - who later pressed his golden buzzer for Calum.
"No amount of record deals will replace my family, so I wouldn't have carried on if it had upset my sister too much," Calum explains.
"It was a struggle to watch her go through this because she's always been my inspiration. I used to listen to her sing in her bedroom and think, "Wow, I wish I could do that".
"But she's already making plans and will bounce back. I couldn't be more proud of her".
What an awesome little brother!
"The dream would be for us to tour together. If I was picked up by a record label and Jade could be my support act on tour, that would mean everything to me.
"We've talked about it and discussed working together in the future. We've shared stages in the past and it bought us closer together as siblings".
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