no, they are siblings
Angus and Julia Stone are known for being a brother and sister Australian folk/blues group. You can get more information about Angus and Julia Stone at the Wikipedia.
Jjulia stone played trumpet at shool. They can obviously both sing too.
Angus and Julia Stone
Angus and Julia Stone - For You
Acoustic Folk/Blues
Angus and Julia Stone - For You
Angus and julia stone
Angus and Julia Stone - 'For You'
Angus & Julia Stone... "For You"
Its by Angus and Julia Stone!
Big Jet Plane by Angus and Julia Stone
Sounds like Cerys Matthews from Catatonia to me ? It's Julia Stone. From the album 'Memories of an Old Friend' by Angus & Julia Stone. It's on iTunes