This duo plays rock ‘n’ roll using only two cellos

Two musicians are using the cello to play contemporary rock music, drawing millions of YouTube views and filling concert halls. Stjepan Hauser, from Croatia, and Luka Sulić, from Slovenia, are both classically trained and form the band 2Cellos, which has sold out shows in Portland, Seattle, Denver, Boston and New York. NewsHour Weekend’s Phil Hirschkorn caught up with them.