Isabella "Machine" Summers (born 31 October 1980) is an English musician, songwriter, producer and remixer who is a member of English indie rock band Florence and the Machine.
As well as being the keyboard player for the group, Summers has five co-write credits on the critically acclaimed, BRIT award winning Lungs. Isabella also has three co-writes on the album Ceremonials.
When not on tour with Florence and the Machine, Summers spends her time writing, producing and remixing tracks for an array of artists.
She is a founding member of the band The Life, The Love and The Grateful and is in the progress of co-writing and producing their debut album.