The singer - who is signed to Xenomania's Sony label - has revealed that new songs by the girl group exist.
Asked if she had heard the results of Girls Aloud's recording session earlier this year, Lily told Popjustice: "Yes I have. But I'm not telling anyone about them, it's top secret."
Talking about who else was working at the studios during her time there, she added: "Annie was there! I love Annie, she's always there. She's always writing melodies and lyrics for me.
"Florrie's always there. They're great them two. They always make vegetable drinks in the blender, which is better than drinking sugary drinks that's for sure.
"I mean, I don't actually like them but they've got me into them because they're so healthy and they're growing on me."
Amelia Lily will release her debut single 'You Bring Me Joy' in the UK on August 26.
Listen to Amelia Lily's 'You Bring Me Joy' below: