Echobrain was an American rock/metal musical group formed in 2000, prominent for featuring bass guitarist Jason Newsted after his departure from Metallica. They released three albums and disbanded in 2005.

Jason Curtis Newsted is an American musician, best known as the bassist of heavy metal band Metallica from 1986 to 2001. He performed with thrash metal band Flotsam and Jetsam for the first five years of his career before joining Metallica in October 1986 to succeed Cliff Burton, who died the month prior. Newsted performed on the albums ...And Justice for All (1988), Metallica (1991), Load (1996), and Reload (1997). He left the group in early 2001.