U.S. album sales rose more than 3 percent last year for the first gain since 2004 — a sign that rising digital sales are finally stemming the decade-long decline of compact discs. The uptick to 458 million album sales was helped by the hugely popular sophomore album "21" from British singer Adele, which sold 5.8 million, according to Nielsen SoundScan. Huge interest in Adele also led to the sales of 856,000 copies of "19," her debut album from 2008.