Although they would likely create impossibly attractive babies, British rock group Bastille and Los Angeles sister act, Haim, have made something almost as pretty.

The two bands collaborated on the song 'Bite Down,' featured on Bastille's upcoming mixtape, 'VS (Other People's Heartache Pt. III),' and you can check it out below.

The album, which also features appearances from the likes of Grades and MNEK, is set for release Dec. 10 via Virgin.

Bastille and Haim -- 'Bite Down'