A popular pioneering figure in classical crossover was classically trained tenor and film star Mario Lanza, although the term "crossover" did not yet exist at the time of his greatest popularity in the 1950s. Signed to RCA Victor as an artist on its premium Red Seal label, Lanza's albums appealed to more than just classical music audiences. His recording of "Be My Love" from his second film, "The Toast of New Orleans", hit Number One on the "Billboard" pop singles chart in February 1951 and sold more than two million copies, a feat no classical artist before or since has achieved. Lanza recorded two other million-selling singles that made Billboard's top ten, "The Loveliest Night of the Year" and "Because You're Mine". Five of Lanza's albums hit Number One on Billboard's pop album chart between 1951 and 1955. "The Great Caruso" was the first and to date is the only recording composed exclusively of operatic arias to reach Number One on the U.S. pop album charts. "The Student Prince", released in 1954, was Number One for 42 weeks.