Alisha's Attic

Alisha's Attic were an English duo of the 1990s and early 2000s. The two members were sisters Shelly McErlaine (née Poole) and Karen Poole, born in Barking and Chadwell Heath respectively. Their father is Brian Poole of 1960s group Brian Poole and the Tremeloes. The "Alisha" referred to in the group's name is a fictional character created by Shelly and Karen, based on an imaginary childhood friend of Shelly's. "Attic" is a reference to the attic studio belonging to a composer friend, Terry Martin, where they originally recorded demos.

source: Wikipedia