He was 78.He was surrounded by family when he died unexpectedly of cardiopulmonary failure at Cedars-Sinai Medical Center, said his longtime publicist, Bobbi Marcus.With Leiber as lyricist and Stoller as composer, the team channeled their blues and jazz backgrounds into pop songs performed by such artists as Elvis Presley, Dion and the Belmonts, the Coasters, the Drifters and Ben E. King in a way